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基本介绍

gfile文件管理组件提供了更加丰富的文件/目录操作能力。

使用方式

import "github.com/gogf/gf/v2/os/gfile"

接口文档

https://pkg.go.dev/github.com/gogf/gf/v2/os/gfile

Tip

以下常用方法列表,文档更新可能滞后于代码新特性,更多的方法及示例请参考代码文档:https://pkg.go.dev/github.com/gogf/gf/v2/os/gfile

内容管理

GetContents

  • 说明:读取指定路径文件内容,以字符串形式返回。
  • 格式: 

    Code Block
    languagego
    func GetContents(path string) string


  • 示例:

    Code Block
    languagego
    func ExampleGetContents() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_content")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "goframe example content")
    
    	// It reads and returns the file content as string.
    	// It returns empty string if it fails reading, for example, with permission or IO error.
    	fmt.Println(gfile.GetContents(tempFile))
    
    	// Output:
    	// goframe example content
    }


GetContentsWithCache

    • 说明:带缓存获取文件内容,可设置缓存超时,文件发生变化自动清除缓存。
    • 格式: 

      Code Block
      languagego
      func GetContentsWithCache(path string, duration ...time.Duration) string


    • 示例:

      Code Block
      languagego
      func ExampleGetContentsWithCache() {
      	// init
      	var (
      		fileName = "gflie_example.txt"
      		tempDir  = gfile.TempDir("gfile_example_cache")
      		tempFile = gfile.Join(tempDir, fileName)
      	)
      
      	// write contents
      	gfile.PutContents(tempFile, "goframe example content")
      
      	// It reads the file content with cache duration of one minute,
      	// which means it reads from cache after then without any IO operations within on minute.
      	fmt.Println(gfile.GetContentsWithCache(tempFile, time.Minute))
      
      	// write new contents will clear its cache
      	gfile.PutContents(tempFile, "new goframe example content")
      
      	// There's some delay for cache clearing after file content change.
      	time.Sleep(time.Second * 1)
      
      	// read contents
      	fmt.Println(gfile.GetContentsWithCache(tempFile))
      
      	// May Output:
      	// goframe example content
      	// new goframe example content
      }

GetBytes


GetBytesWithCache

    • 说明:带缓存获取文件内容,可设置缓存超时,文件发生变化自动清除缓存,返回[]byte。
    • 格式: 

      Code Block
      languagego
      func GetBytesWithCache(path string, duration ...time.Duration) []byte
  • 说明:读取指定路径文件内容,以字节形式返回。

    • 示例:

      Code Block
      languagego
      func 
  • ExampleGetBytes
    • ExampleGetBytesWithCache() {
      	// init
      	var (
      		fileName = "gflie_example.txt"
      		tempDir  = gfile.TempDir("gfile_example_
  • content
    • cache")
      		tempFile = gfile.Join(tempDir, fileName)
      	)
      
      	// write contents
      	gfile.PutContents(tempFile, "goframe example content")
      
      	// It reads
  • and
    •  
  • returns
    • the file content
  • as []byte.
    •  with cache duration of one minute,
      	// 
  • It
    • which 
  • returns
    • means it 
  • nil
    • reads 
  • if
    • from 
  • it
    • cache 
  • fails
    • after 
  • reading,
    • then 
  • for
    • without 
  • example,
    • any 
  • with
    • IO 
  • permission
    • operations 
  • or
    • within 
  • IO
    • on 
  • error
    • minute.
      	fmt.Println(gfile.
  • GetBytes
    • GetBytesWithCache(tempFile, time.Minute))
      
      	// 
  • Output: // [103 111 102 114 97 109 101 32 101 120 97 109 112 108 101 32 99 111 110 116 101 110 116] }

PutContents

  • 说明:往指定路径文件添加字符串内容。如果文件不存在将会递归的形式自动创建。
  • 示例:

    Code Block
    languagego
    func ExamplePutContents() { // init var ( fileName = "gflie_example.txt" tempDir = gfile.TempDir("gfile_example_content") tempFile = gfile.Join(tempDir, fileName)
    • write new contents will clear its cache
      	gfile.PutContents(tempFile, "new goframe example content")
      
      	// There's some delay for cache clearing after file content change.
      	time.Sleep(time.Second * 1)
      
      	// read contents
      	fmt.Println(gfile.GetBytesWithCache(tempFile))
      
      	// 
  • It creates and puts content string into specifies file path. // It automatically creates directory recursively if it does not exist. gfile.PutContents(tempFile, "goframe example content") // read contents fmt.Println(gfile.GetContents(tempFile)) // Output: // goframe example content }

PutBytes

    • Output:
      	// [103 111 102 114 97 109 101 32 101 120 97 109 112 108 101 32 99 111 110 116 101 110 116]
      	// [110 101 119 32 103 111 102 114 97 109 101 32 101 120 97 109 112 108 101 32 99 111 110 116 101 110 116]
      }


GetBytes

  • 说明:读取指定路径文件内容,以字节形式返回。
  • 格式: 

    Code Block
    languagego
    func GetBytes(path string) []byte


  • 示例:

    Code Block
    languagego
    func ExampleGetBytes() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = 
  • 说明:以字节形式写入指定文件,如果文件不存在将会递归的形式自动创建
  • 示例:

    Code Block
    languagego
    func ExamplePutBytes() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_content")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutBytesPutContents(tempFile, []byte("goframe example content"))
    
    	// read contentsIt reads and returns the file content as []byte.
    	// It returns nil if it fails reading, for example, with permission or IO error.
    	fmt.Println(gfile.GetContentsGetBytes(tempFile))
    
    	// Output:
    	// goframe example content
    }

PutContentsAppend

  •  [103 111 102 114 97 109 101 32 101 120 97 109 112 108 101 32 99 111 110 116 101 110 116]
    }


GetBytesTilChar

  • 说明:以某个字符定位截取指定长度的文件内容以字节形式返回
  • 格式: 

  • 说明:追加字符串内容到指定文件,如果文件不存在将会递归的形式自动创建。
  • 示例:
  • Code Block
    languagego
    func 
  • ExamplePutContentsAppend
  • GetBytesTilChar(reader io.ReaderAt, char byte, start int64) ([]byte, int64)


  • 示例:

    Code Block
    languagego
    func ExampleGetBytesTilChar() {
    ) {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_content")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "goframe example content")
    
    	// read contents
    	fmt.Println(gfile.GetContents(tempFile))f, _ := gfile.OpenWithFlagPerm(tempFile, os.O_RDONLY, gfile.DefaultPermOpen)
    
    	// ItGetBytesTilChar createsreturns andthe appendcontents contentof stringthe intofile specifies file path.as []byte
    	// Ituntil automaticallythe createsnext directoryspecified recursivelybyte if it does not exist`char` position.
    	gfile.PutContentsAppend(tempFilechar, "i append content")
    
    	// read contents:= gfile.GetBytesTilChar(f, 'f', 0)
    	fmt.Println(gfile.GetContents(tempFile)char)
    	fmt.Println(i)
    
    	// Output:
    	// goframe[103 example111 content102]
    	// goframe example content append content
    }

PutBytesAppend

  • 说明:追加字节内容到指定文件。如果文件不存在将会递归的形式自动创建。
  • 2
    }


GetBytesByTwoOffsets

  • 说明:以指定的区间读取文件内容
  • 格式: 

    Code Block
    languagego
    func GetBytesByTwoOffsets(reader io.ReaderAt, start int64, end int64) []byte 


  • 示例:

    Code Block
    languagego
    func ExamplePutBytesAppendExampleGetBytesByTwoOffsets() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_content")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "goframe example content")
    
    	// read contents
    	fmt.Println(gfile.GetContents(tempFile))f, _ := gfile.OpenWithFlagPerm(tempFile, os.O_RDONLY, gfile.DefaultPermOpen)
    
    	// GetBytesTilChar write contents
    	gfile.PutBytesAppend(tempFile,returns the contents of the file as []byte(" append"))
    
    	// read contents until the next specified byte `char` position.
    	char := gfile.GetBytesByTwoOffsets(f, 0, 3)
    	fmt.Println(gfile.GetContents(tempFile)char)
    
    	// Output:
    	// goframe[103 example111 content
    	// goframe example content append
    }

GetNextCharOffsetByPath

  • 102]
    }


PutContents

  • 说明:往指定路径文件添加字符串内容。如果文件不存在将会递归的形式自动创建。
  • 格式: 

  • 说明:从某个偏移量开始,获取文件中指定字符所在下标
  • 示例:
  • Code Block
    languagego
    func putContents(path string, data []byte, flag int, perm os.FileMode) error


  • 示例:

    Code Block
    languagego
    func ExamplePutContents() {
    	ExampleGetNextCharOffsetByPath() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_content")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents It creates and puts content string into specifies file path.
    	// It automatically creates directory recursively if it does not exist.
    	gfile.PutContents(tempFile, "goframe example content")
    
    	// read contents
    	index := fmt.Println(gfile.GetNextCharOffsetByPathGetContents(tempFile, 'f', 0)
    	fmt.Println(index)
    
    	// Output:
    	// goframe example 2content
    }

GetBytesTilCharByPath


PutBytes

  • 说明:以字节形式写入指定文件,如果文件不存在将会递归的形式自动创建
  • 格式: 

    Code Block
    languagego
    func PutBytes(path string, content []byte) error
    说明:以某个字符定位截取指定长度的文件内容以字节形式返回


  • 示例:

    Code Block
    languagego
    func ExampleGetBytesTilCharByPathExamplePutBytes() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_content")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContentsPutBytes(tempFile, []byte("goframe example content"))
    
    	// read contents
    	fmt.Println(gfile.GetBytesTilCharByPathGetContents(tempFile, 'f', 0))
    
    	// Output:
    	// [103goframe 111 102] 2example content
    }

GetBytesByTwoOffsetsByPath


PutContentsAppend

  • 说明:追加字符串内容到指定文件,如果文件不存在将会递归的形式自动创建。
  • 格式: 

    Code Block
    languagego
    func PutContentsAppend(path string, content string) error
    说明:用两个偏移量截取指定文件的内容以字节形式返回


  • 示例:

    Code Block
    languagego
    func ExampleGetBytesByTwoOffsetsByPathExamplePutContentsAppend() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_content")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "goframe example content")
    
    	// read contents
    	fmt.Println(gfile.GetBytesByTwoOffsetsByPathGetContents(tempFile, 0, 7))
    
    	// Output:
    	// [103 111 102 114 97 109 101]
    }

ReadLines

  • 说明:以字符串形式逐行读取文件内容
  • 示例:

    Code Block
    languagego
    func ExampleReadLines() {It creates and append content string into specifies file path.
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_content")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents It automatically creates directory recursively if it does not exist.
    	gfile.PutContentsAppend(tempFile, "L1 goframe exampleappend content\nL2 goframe example content")
    
    	// read contents
    	fmt.Println(gfile.ReadLines(tempFile, func(text string) error {
    		// Process each line
    		fmt.Println(text)
    		return nil
    	})
    
    	GetContents(tempFile))
    
    	// Output:
    	// L1 goframe example content
    	// L2 goframe example content append content
    }

ReadLinesBytes


PutBytesAppend

  • 说明:追加字节内容到指定文件。如果文件不存在将会递归的形式自动创建。
  • 格式: 

    Code Block
    languagego
    func PutBytesAppend(path string, content []byte) error
    说明:以字节形式逐行读取文件内容


  • 示例:

    Code Block
    languagego
    func ExampleReadLinesBytesExamplePutBytesAppend() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_content")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "L1 goframe example content\nL2 goframe example content")
    
    	// read contents
    	fmt.Println(gfile.ReadLinesBytesGetContents(tempFile, func(bytes []byte) error {
    	))
    
    	// Processwrite each linecontents
    		fmt.Println(bytes)
    		return nil
    	}gfile.PutBytesAppend(tempFile, []byte(" append"))
    
    	// read contents
    	fmt.Println(gfile.GetContents(tempFile))
    
    	// Output:
    	// [76goframe 49 32 103 111 102 114 97 109 101 32 101 120 97 109 112 108 101 32 99 111 110 116 101 110 116]
    	// [76 50 32 103 111 102 114 97 109 101 32 101 120 97 109 112 108 101 32 99 111 110 116 101 110 116]
    }

内容替换

ReplaceFile

  • example content
    	// goframe example content append
    }


GetNextCharOffset

  • 说明:从某个偏移量开始,获取文件中指定字符所在下标
  • 格式: 

    Code Block
    languagego
    func GetNextCharOffset(reader io.ReaderAt, char byte, start int64) int64


  • 示例:

    Code Block
    languagego
    func ExampleGetNextCharOffset() {
    	// init
    	
  • 说明:替换指定文件的指定内容为新内容
  • 示例:

    Code Block
    languagego
    func ExampleReplaceFile() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_replacecontent")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "goframe example content")
    	
    	//f, read contents
    	fmt.Println(err := gfile.GetContentsOpenWithFlagPerm(tempFile, os.O_RDONLY, DefaultPermOpen)
    	defer f.Close()
    
    	// It replaces content directly by file path.
    	gfile.ReplaceFile("content", "replace word", tempFile)
    read contents
    	index := gfile.GetNextCharOffset(f, 'f', 0)
    	fmt.Println(gfile.GetContents(tempFileindex))
    
    	// Output:
    	// goframe example content
    	// goframe example replace word
    }

ReplaceFileFunc

  • 2
    }


GetNextCharOffsetByPath

  • 说明:从某个偏移量开始,获取文件中指定字符所在下标
  • 格式: 

  • 说明:使用自定义函数替换指定文件内容
  • 示例:
  • Code Block
    languagego
    func GetNextCharOffsetByPath(path string, char byte, start int64) int64 


  • 示例:

    Code Block
    languagego
    func ExampleGetNextCharOffsetByPath() {
    	// init
    	var (
    ExampleReplaceFileFunc() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_replacecontent")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "goframe example 123content")
    
    	// read contents
    	fmt.Println(index := gfile.GetContentsGetNextCharOffsetByPath(tempFile, 'f', 0)
    	fmt.Println(index)
    
    	// It replaces content directly by file path and callback function.
    	gfile.ReplaceFileFunc(func(path, content string) string {
    		// Replace with regular match
    		reg, _ := regexp.Compile(`\d{3}`)
    		return reg.ReplaceAllString(content, "[num]")
    	}, tempFile)
    
    	fmt.Println(gfile.GetContents(tempFile))
    
    	// Output:
    	// goframe example 123
    	// goframe example [num]
    }

ReplaceDir

  • Output:
    	// 2
    }



GetBytesTilCharByPath

  • 说明:以某个字符定位截取指定长度的文件内容以字节形式返回
  • 格式: 

    Code Block
    languagego
    func GetBytesTilCharByPath(path string, char byte, start int64) ([]byte, int64) 


  • 示例:

    Code Block
    languagego
    func ExampleGetBytesTilCharByPath() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_content")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "goframe example content")
    
    	// read contents
    	fmt.Println(gfile.GetBytesTilCharByPath(tempFile, 'f', 0))
    
    	// Output:
    	// [103 111 102] 2
    }


GetBytesByTwoOffsetsByPath

  • 说明:用两个偏移量截取指定文件的内容以字节形式返回
  • 格式: 

    Code Block
    languagego
    func GetBytesByTwoOffsetsByPath(path string, start int64, end int64) []byte
    说明:扫描指定目录,替换符合条件的文件的指定内容为新内容


  • 示例:

    Code Block
    languagego
    func ExampleReplaceDirExampleGetBytesByTwoOffsetsByPath() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_replacecontent")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "goframe example content")
    
    	// read contents
    	fmt.Println(gfile.GetContentsGetBytesByTwoOffsetsByPath(tempFile, 0, 7))
    
    	// It replaces content of all files under specified directory recursively.
    	gfile.ReplaceDir("content", "replace word", tempDir, "gflie_example.txt", true)
    
    	// read contents
    	fmt.Println(gfile.GetContents(tempFile))
    
    	// Output:
    	// goframe example content
    	// goframe example replace word
    }

ReplaceDirFunc

  • Output:
    	// [103 111 102 114 97 109 101]
    }


ReadLines

  • 说明:以字符串形式逐行读取文件内容
  • 格式: 

    Code Block
    languagego
    func ReadLines(file string, callback func(text string) error) error


  • 说明:扫描指定目录,使用自定义函数替换符合条件的文件的指定内容为新内容
  • 示例:

    Code Block
    languagego
    func ExampleReplaceDirFuncExampleReadLines() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_replacecontent")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "L1 goframe example 123")
    
     content\nL2 goframe example content")
    
    	// read contents
    	fmt.Println(gfile.GetContents(tempFile))
    
    	// It replaces content of all files under specified directory with custom callback function recursively.
    	gfile.ReplaceDirFunc(func(path, content string) stringReadLines(tempFile, func(text string) error {
    		// ReplaceProcess witheach regular matchline
    		reg, _ := regexp.Compile(`\d{3}`fmt.Println(text)
    		return reg.ReplaceAllString(content, "[num]")
    	}, tempDir, "gflie_example.txt", true)
    
    	fmt.Println(gfile.GetContents(tempFile))
    
    	// Output:
    	//nil
    	})
    
    	// Output:
    	// L1 goframe example 123content
    	// L2 goframe example [num]content
    
    }
文件时间

ReadLinesBytes

MTime
  • 说明:以字节形式逐行读取文件内容说明:获取路径修改时间
  • 格式: 

  • 示例:

  • Code Block
    languagego
    func 
  • ExampleMTime
  • ReadLinesBytes(
  • ) { t := gfile.MTime(gfile.TempDir()) fmt.Println(t) // May Output: // 2021-11-02 15:18:43.901141 +0800 CST }

MTimestamp

  • file string, callback func(bytes []byte) error) error 


  • 示例:

    Code Block
    languagego
    func ExampleReadLinesBytes() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_content")
    		tempFile = gfile.Join(tempDir, fileName)
    	
  • 说明:获取路径修改时间戳(秒)
  • 示例:

    Code Block
    languagego
    func ExampleMTimestamp() {
    	t := gfile.MTimestamp(gfile.TempDir())
    	fmt.Println(t)
    
    	// May Output: write contents
    	gfile.PutContents(tempFile, "L1 goframe example content\nL2 goframe example content")
    
    	// read 1635838398
    }

MTimestampMilli

  • 说明:获取路径修改时间戳(毫秒)
  • 示例:

    Code Block
    languagego
    func ExampleMTimestampMilli()contents
    	gfile.ReadLinesBytes(tempFile, func(bytes []byte) error {
    	t := gfile.MTimestampMilli(gfile.TempDir())
    		// Process each line
    		fmt.Println(tbytes)
    		return nil
    	})
    
    	// May Output:
    	// 1635838529330
    }

文件大小

Size

  • [76 49 32 103 111 102 114 97 109 101 32 101 120 97 109 112 108 101 32 99 111 110 116 101 110 116]
    	// [76 50 32 103 111 102 114 97 109 101 32 101 120 97 109 112 108 101 32 99 111 110 116 101 110 116]
    }


Truncate

  • 说明:裁剪文件为指定大小
  • 注意:如果给定文件路径是软链,将会修改源文件
  • 格式: 

    Code Block
    languagego
    func Truncate(path string, size int) error


  • 示例:

    Code Block
    languagego
    func ExampleTruncate(){
    	// init
    	var (
    		path = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
    	)
    
    	// Check whether the `path` size
    	stat, _ := gfile.Stat(path)
    	fmt.Println(stat.Size())
    
    	// Truncate file
    	gfile.Truncate(path, 0)
    
    	// Check whether the `path` size
    	stat, _ = gfile.Stat(path)
    	fmt.Println(stat.Size())
    
    	// Output:
    	// 13
    	// 0
    }



内容替换

ReplaceFile

  • 说明:替换指定文件的指定内容为新内容
  • 格式: 

    Code Block
    languagego
    func ReplaceFile(search, replace, path string) error 


  • 示例:

    Code Block
    languagego
    func ExampleReplaceFile() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_replace")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "goframe example content")
    
    	// read contents
    	fmt.Println(gfile.GetContents(tempFile))
    
    	// It replaces content directly by file path.
    	gfile.ReplaceFile("content", "replace word", tempFile)
    
    	fmt.Println(gfile.GetContents(tempFile))
    
    	// Output:
    	// goframe example content
    	// goframe example replace word
    }


ReplaceFileFunc

  • 说明:使用自定义函数替换指定文件内容
  • 格式: 

    Code Block
    languagego
    func ReplaceFileFunc(f func(path, content string) string, path string) error


  • 示例:

    Code Block
    languagego
    func ExampleReplaceFileFunc() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_replace")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "goframe example 123")
    
    	// read contents
    	fmt.Println(gfile.GetContents(tempFile))
    
    	// It replaces content directly by file path and callback function.
    	gfile.ReplaceFileFunc(func(path, content string) string {
    		// Replace with regular match
    		reg, _ := regexp.Compile(`\d{3}`)
    		return reg.ReplaceAllString(content, "[num]")
    	}, tempFile)
    
    	fmt.Println(gfile.GetContents(tempFile))
    
    	// Output:
    	// goframe example 123
    	// goframe example [num]
    }


ReplaceDir

  • 说明:扫描指定目录,替换符合条件的文件的指定内容为新内容
  • 格式: 

    Code Block
    languagego
    func ReplaceDir(search, replace, path, pattern string, recursive ...bool) error


  • 示例:

    Code Block
    languagego
    func ExampleReplaceDir() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_replace")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "goframe example content")
    
    	// read contents
    	fmt.Println(gfile.GetContents(tempFile))
    
    	// It replaces content of all files under specified directory recursively.
    	gfile.ReplaceDir("content", "replace word", tempDir, "gflie_example.txt", true)
    
    	// read contents
    	fmt.Println(gfile.GetContents(tempFile))
    
    	// Output:
    	// goframe example content
    	// goframe example replace word
    }


ReplaceDirFunc

  • 说明:扫描指定目录,使用自定义函数替换符合条件的文件的指定内容为新内容
  • 格式: 

    Code Block
    languagego
    func ReplaceDirFunc(f func(path, content string) string, path, pattern string, recursive ...bool) error


  • 示例:

    Code Block
    languagego
    func ExampleReplaceDirFunc() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_replace")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "goframe example 123")
    
    	// read contents
    	fmt.Println(gfile.GetContents(tempFile))
    
    	// It replaces content of all files under specified directory with custom callback function recursively.
    	gfile.ReplaceDirFunc(func(path, content string) string {
    		// Replace with regular match
    		reg, _ := regexp.Compile(`\d{3}`)
    		return reg.ReplaceAllString(content, "[num]")
    	}, tempDir, "gflie_example.txt", true)
    
    	fmt.Println(gfile.GetContents(tempFile))
    
    	// Output:
    	// goframe example 123
    	// goframe example [num]
    
    }


文件时间

MTime

  • 说明:获取路径修改时间
  • 格式: 

    Code Block
    languagego
    func MTime(path string) time.Time 


  • 示例:

    Code Block
    languagego
    func ExampleMTime() {
    	t := gfile.MTime(gfile.TempDir())
    	fmt.Println(t)
    
    	// May Output:
    	// 2021-11-02 15:18:43.901141 +0800 CST
    }


MTimestamp

  • 说明:获取路径修改时间戳(秒)
  • 格式: 

    Code Block
    languagego
    func MTimestamp(path string) int64


  • 示例:

    Code Block
    languagego
    func ExampleMTimestamp() {
    	t := gfile.MTimestamp(gfile.TempDir())
    	fmt.Println(t)
    
    	// May Output:
    	// 1635838398
    }


MTimestampMilli

  • 说明:获取路径修改时间戳(毫秒)
  • 格式: 

    Code Block
    languagego
    func MTimestampMilli(path string) int64


  • 示例:

    Code Block
    languagego
    func ExampleMTimestampMilli() {
    	t := gfile.MTimestampMilli(gfile.TempDir())
    	fmt.Println(t)
    
    	// May Output:
    	// 1635838529330
    }


文件大小

Size

  • 说明:获取路径大小,不进行格式化
  • 格式: 

    Code Block
    languagego
    func Size(path string) int64 


  • 示例:

    Code Block
    languagego
    func ExampleSize() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_size")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "0123456789")
    	fmt.Println(gfile.Size(tempFile))
    
    	// Output:
    	// 10
    }


SizeFormat

  • 说明:获取路径大小,并格式化成硬盘容量
  • 格式: 

    Code Block
    languagego
    func SizeFormat(path string) string


  • 示例:

    Code Block
    languagego
    func ExampleSizeFormat() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_size")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "0123456789")
    	fmt.Println(gfile.SizeFormat(tempFile))
    
    	// Output:
    	// 10.00B
    }


ReadableSize

  • 说明:获取给定路径容量大小,并格式化人类易读的硬盘容量格式
  • 格式: 

    Code Block
    languagego
    func ReadableSize(path string) string


  • 示例:

    Code Block
    languagego
    func ExampleReadableSize() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_size")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "01234567899876543210")
    	fmt.Println(gfile.ReadableSize(tempFile))
    
    	// Output:
    	// 20.00B
    }


StrToSize

  • 说明:硬盘容量大小字符串转换为大小整形
  • 格式: 

    Code Block
    languagego
    func StrToSize(sizeStr string) int64


  • 示例:

    Code Block
    languagego
    func ExampleStrToSize() {
    	size := gfile.StrToSize("100MB")
    	fmt.Println(size)
    
    	// Output:
    	// 104857600
    }


FormatSize

  • 说明:大小整形转换为硬盘容量大小字符串`K、m、g、t、p、e、b`
  • 格式: 

    Code Block
    languagego
    func FormatSize(raw int64) string


  • 示例:

    Code Block
    languagego
    func ExampleFormatSize() {
    	sizeStr := gfile.FormatSize(104857600)
    	fmt.Println(sizeStr)
    	sizeStr0 := gfile.FormatSize(1024)
    	fmt.Println(sizeStr0)
    	sizeStr1 := gfile.FormatSize(999999999999999999)
    	fmt.Println(sizeStr1)
    
    	// Output:
    	// 100.00M
    	// 1.00K
    	// 888.18P
    }


文件排序

SortFiles

  • 说明:排序多个路径,按首字母进行排序,数字优先。
  • 格式: 

    Code Block
    languagego
    func SortFiles(files []string) []string


  • 示例:

    Code Block
    languagego
    func ExampleSortFiles() {
    	files := []string{
    		"/aaa/bbb/ccc.txt",
    		"/aaa/bbb/",
    		"/aaa/",
    		"/aaa",
    		"/aaa/ccc/ddd.txt",
    		"/bbb",
    		"/0123",
    		"/ddd",
    		"/ccc",
    	}
    	sortOut := gfile.SortFiles(files)
    	fmt.Println(sortOut)
    
    	// Output:
    	// [/0123 /aaa /aaa/ /aaa/bbb/ /aaa/bbb/ccc.txt /aaa/ccc/ddd.txt /bbb /ccc /ddd]
    }


文件检索

  • 说明:在指定目录(默认包含当前目录、运行目录、主函数目录;不会递归子目录)中搜索文件并返回真实路径。
  • 格式: 

    Code Block
    languagego
    func Search(name string, prioritySearchPaths ...string) (realPath string, err error) 


  • 示例:

    Code Block
    languagego
    func ExampleSearch() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_search")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "goframe example content")
    
    	// search file
    	realPath, _ := gfile.Search(fileName, tempDir)
    	fmt.Println(gfile.Basename(realPath))
    
    	// Output:
    	// gflie_example.txt
    }


目录扫描

ScanDir

  • 说明:扫描指定目录,可扫描文件或目录,支持递归扫描。
  • 格式: 

    Code Block
    languagego
    func ScanDir(path string, pattern string, recursive ...bool) ([]string, error)


  • 示例:

    Code Block
    languagego
    func ExampleScanDir() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_scan_dir")
    		tempFile = gfile.Join(tempDir, fileName)
    
    		tempSubDir  = gfile.Join(tempDir, "sub_dir")
    		tempSubFile = gfile.Join(tempSubDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "goframe example content")
    	gfile.PutContents(tempSubFile, "goframe example content")
    
    	// scans directory recursively
    	list, _ := gfile.ScanDir(tempDir, "*", true)
    	for _, v := range list {
    		fmt.Println(gfile.Basename(v))
    	}
    
    	// Output:
    	// gflie_example.txt
    	// sub_dir
    	// gflie_example.txt
    }


ScanDirFile

  • 说明:扫描指定目录的文件,支持递归扫描
  • 格式: 

    Code Block
    languagego
    func ScanDirFile(path string, pattern string, recursive ...bool) ([]string, error)


  • 示例:

    Code Block
    languagego
    func ExampleScanDirFile() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_scan_dir_file")
    		tempFile = gfile.Join(tempDir, fileName)
    
    		tempSubDir  = gfile.Join(tempDir, "sub_dir")
    		tempSubFile = gfile.Join(tempSubDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "goframe example content")
    	gfile.PutContents(tempSubFile, "goframe example content")
    
    	// scans directory recursively exclusive of directories
    	list, _ := gfile.ScanDirFile(tempDir, "*.txt", true)
    	for _, v := range list {
    		fmt.Println(gfile.Basename(v))
    	}
    
    	// Output:
    	// gflie_example.txt
    	// gflie_example.txt
    }


ScanDirFunc

  • 说明:扫描指定目录(自定义过滤方法),可扫描文件或目录,支持递归扫描
  • 格式: 

    Code Block
    languagego
    func ScanDirFunc(path string, pattern string, recursive bool, handler func(path string) string) ([]string, error)


  • 示例:

    Code Block
    languagego
    func ExampleScanDirFunc() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_scan_dir_func")
    		tempFile = gfile.Join(tempDir, fileName)
    
    		tempSubDir  = gfile.Join(tempDir, "sub_dir")
    		tempSubFile = gfile.Join(tempSubDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "goframe example content")
    	gfile.PutContents(tempSubFile, "goframe example content")
    
    	// scans directory recursively
    	list, _ := gfile.ScanDirFunc(tempDir, "*", true, func(path string) string {
    		// ignores some files
    		if gfile.Basename(path) == "gflie_example.txt" {
    			return ""
    		}
    		return path
    	})
    	for _, v := range list {
    		fmt.Println(gfile.Basename(v))
    	}
  • 说明:获取路径大小,不进行格式化
  • 示例:

    Code Block
    languagego
    func ExampleSize() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_size")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "0123456789")
    	fmt.Println(gfile.Size(tempFile))
    
    	// Output:
    	// 10sub_dir
    }
SizeFormat

ScanDirFileFunc

  • 说明:获取路径大小,并格式化成硬盘容量说明:扫描指定目录的文件(自定义过滤方法),支持递归扫描。
  • 示例:
  • 格式: 

    Code Block
    languagego
    func 
  • ExampleSizeFormat
  • ScanDirFileFunc(
  • ) { // init var ( fileName = "gflie_example.txt" tempDir = gfile.TempDir("gfile_example_size") tempFile = gfile.Join(tempDir, fileName) ) // write contents gfile.PutContents(tempFile, "0123456789") fmt.Println(gfile.SizeFormat(tempFile)) // Output: // 10.00B }

ReadableSize

  • 说明:获取给定路径容量大小,并格式化人类易读的硬盘容量格式
    path string, pattern string, recursive bool, handler func(path string) string) ([]string, error) 


  • 示例:

    Code Block
    languagego
    func ExampleReadableSizeExampleScanDirFileFunc() {
    	// init
    	var (
    		fileName = "gflie_example.txt"
    		tempDir  = gfile.TempDir("gfile_example_sizescan_dir_file_func")
    		tempFile = gfile.Join(tempDir, fileName)
    	)
    
    	// write contents
    	gfile.PutContents(tempFile, "01234567899876543210")
    	fmt.Println(gfile.ReadableSize(tempFile))
    
    	// Output:
    	// 20.00B
    }

StrToSize

  • 说明:硬盘容量大小字符串转换为大小整形
  • 示例:

    Code Block
    languagego
    func ExampleStrToSize() {
    	size := gfile.StrToSize("100MB")
    	fmt.Println(size)
    
    	// Output:
    	// 104857600
    }

    FormatSize

    • 说明:大小整形转换为硬盘容量大小字符串`K、m、g、t、p、e、b`
    • 示例:

      Code Block
      languagego
      func ExampleFormatSize() {
      	sizeStr := gfile.FormatSize(104857600)
      	fmt.Println(sizeStr)
      	sizeStr0 := gfile.FormatSize(1024)
      	fmt.Println(sizeStr0)
      	sizeStr1 := gfile.FormatSize(999999999999999999)
      	fmt.Println(sizeStr1tempDir, fileName)
      
      		fileName1 = "gflie_example_ignores.txt"
      		tempFile1 = gfile.Join(tempDir, fileName1)
      
      		tempSubDir  = gfile.Join(tempDir, "sub_dir")
      		tempSubFile = gfile.Join(tempSubDir, fileName)
      	)
      
      	// write contents
      	gfile.PutContents(tempFile, "goframe example content")
      	gfile.PutContents(tempFile1, "goframe example content")
      	gfile.PutContents(tempSubFile, "goframe example content")
      
      	// Output:
      	// 100.00M
      	// 1.00K
      	// 888.18P
      }

    文件排序

    SortFiles

    • 说明:排序多个路径,按首字母进行排序,数字优先。
    • 示例:

      Code Block
      languagego
      func ExampleSortFiles() {
      	files := []string{
      		"/aaa/bbb/ccc.txt",
      		"/aaa/bbb/",
      		"/aaa/",
      		"/aaa",
      		"/aaa/ccc/ddd.txt",
      		"/bbb",
      		"/0123",
      		"/ddd",
      		"/ccc",
      	}
      	sortOut := gfile.SortFiles(files)
      	fmt.Println(sortOut)scans directory recursively exclusive of directories
      	list, _ := gfile.ScanDirFileFunc(tempDir, "*.txt", true, func(path string) string {
      		// ignores some files
      		if gfile.Basename(path) == "gflie_example_ignores.txt" {
      			return ""
      		}
      		return path
      	})
      	for _, v := range list {
      		fmt.Println(gfile.Basename(v))
      	}
      
      	// Output:
      	// [/0123 /aaa /aaa/ /aaa/bbb/ /aaa/bbb/ccc.txt /aaa/ccc/ddd.txt /bbb /ccc /ddd]
      }

    文件检索

    • gflie_example.txt
      	// gflie_example.txt
      }


    常用目录

    Pwd

    • 说明:获取当前工作路径。
    • 格式: 

      Code Block
      languagego
      func Pwd() string
      说明:在指定目录(默认包含当前目录、运行目录、主函数目录;不会递归子目录)中搜索文件并返回真实路径。


    • 示例:

      Code Block
      languagego
      func 
    • ExampleSearch
    • ExamplePwd() {
      	// 
    • init var ( fileName = "gflie_example.txt" tempDir = gfile.TempDir("gfile_example_search") tempFile = gfile.Join(tempDir, fileName)
    • Get absolute path of current working directory.
      	fmt.Println(gfile.Pwd())
      
      	// 
    • write
    • May 
    • contents
    • Output:
      	// xxx/gf/os/gfile
      }


    Home

    • 说明:获取运行用户的主目录
    • 格式: 

      Code Block
      languagego
      func Home(names ...string) (string, error) 


    • 示例:

      Code Block
      languagego
      func ExampleHome() {
      	// user's home directory
      	homePath.PutContents(tempFile, "goframe example content")
      
      	// search file
      	realPath, _ := gfile.SearchHome(fileName, tempDir)
      	fmt.Println(gfile.Basename(realPath)homePath)
      
      	// May Output:
      	// gflie_example.txt
      }

    目录扫描

    ScanDir

    • C:\Users\hailaz
      }


    TempDir

    • 说明:获取拼接系统临时路径后的绝对地址。

    • 格式: 

      Code Block
      languagego
      func TempDir(names ...string) string
      说明:扫描指定目录,可扫描文件或目录,支持递归扫描。


    • 示例:

      Code Block
      languagego
      func 
    • ExampleScanDir
    • ExampleTempDir() {
      	// init
      	var (
      		fileName
    • = "gflie_example.txt" tempDir
    •  = 
    • gfile.TempDir(
    • "gfile_example_
    • scan
    • basic_dir"
    • )
    • 
      	
    • tempFile = gfile.Join(tempDir, fileName
    • )
      
      	
    • tempSubDir
    • // fetch 
    • = gfile.Join(tempDir, "sub_dir") tempSubFile = gfile.Join(tempSubDir, fileName) ) // write contents gfile.PutContents(tempFile, "goframe example content") gfile.PutContents(tempSubFile, "goframe example content"
    • an absolute representation of path.
      	path := gfile.TempDir(fileName)
      
      	fmt.Println(path)
      
      	// 
    • scans directory recursively
    • Output:
      	
    • list, _ := gfile.ScanDir(tempDir, "*", true) for _, v := range list {
    • // /tmp/gfile_example_basic_dir
      }


    SelfPath

    • 说明:获取当前运行程序的绝对路径。

    • 格式: 

      Code Block
      languagego
      func SelfPath() string 


    • 示例:

      Code Block
      languagego
      func ExampleSelfPath() {
      
      	// Get absolute file path of current running process
      	fmt.Println(gfile.
    • Basename
    • SelfPath(
    • v
    • ))
    • }
    • 
      
      	// May Output:
      	// 
    • gflie_example.txt // sub_dir // gflie_example.txt }

    ScanDirFile

    • xxx/___github_com_gogf_gf_v2_os_gfile__ExampleSelfPath
      }


    类型判断

    IsDir

    • 说明:检查给定的路径是否是文件夹。
    • 格式: 

      Code Block
      languagego
      func IsDir(path string) bool
      说明:扫描指定目录的文件,支持递归扫描


    • 示例:

      Code Block
      languagego
      func 
    • ExampleScanDirFile
    • ExampleIsDir() {
      	// init
    • var ( fileName = "gflie_example.txt" tempDir = gfile.TempDir("gfile_example_scan_dir_file") tempFile = gfile.Join(tempDir, fileName) tempSubDir
    • 
      	var (
      		path     = gfile.
    • Join
    • TempDir(
    • tempDir, "sub
    • "gfile_example_basic_dir")
      		
    • tempSubFile
    • filePath = gfile.Join(
    • tempSubDir, fileName) ) // write contents
    • gfile.
    • PutContents
    • TempDir(
    • tempFile,
    • "
    • goframe example content") gfile.PutContents(tempSubFile, "goframe example content") // scans directory recursively exclusive of directories list, _ := gfile.ScanDirFile(tempDir, "*.txt", true) for _, v := range list {
    • gfile_example_basic_dir"), "file1")
      	)
      	// Checks whether given `path` a directory.
      	fmt.Println(gfile.
    • Basename
    • IsDir(
    • v
    • path))
      	
    • }
    • fmt.Println(gfile.IsDir(filePath))
      
      	// Output:
      	// 
    • gflie_example.txt
    • true
      	// 
    • gflie_example.txt
    • false
      }

    ScanDirFunc


    IsFile

    • 说明:检查给定的路径是否是文件。
    • 格式: 

      Code Block
      languagego
      func IsFile(path string) bool
      说明:扫描指定目录(自定义过滤方法),可扫描文件或目录,支持递归扫描


    • 示例:

      Code Block
      languagego
      func 
    • ExampleScanDirFunc
    • ExampleIsFile() {
      	// init
      	var (
      		
    • fileName
    • filePath = 
    • "gflie_example.txt" tempDir =
    • gfile.Join(gfile.TempDir("gfile_example_
    • scan
    • basic_dir
    • _func
    • ")
    • tempFile = gfile.Join(tempDir
    • , 
    • fileName
    • "file1")
    • 
      		
    • tempSubDir
    • dirPath  = gfile.
    • Join
    • TempDir(
    • tempDir, "sub
    • "gfile_example_basic_dir")
      	
    • tempSubFile = gfile.Join(tempSubDir, fileName) ) // write contents gfile.PutContents(tempFile, "goframe example content") gfile.PutContents(tempSubFile, "goframe example content"
    • )
      	// Checks whether given `path` a file, which means it's not a directory.
      	fmt.Println(gfile.IsFile(filePath))
      	fmt.Println(gfile.IsFile(dirPath))
      
      	//
    • scans directory recursively list, _ := gfile.ScanDirFunc(tempDir, "*", true, func
    •  Output:
      	// true
      	// false
      }


    权限操作

    IsReadable

    • 说明:检查给定的路径是否可读。

    • 格式: 

      Code Block
      languagego
      func IsReadable(path string)
    • string
    •  bool 


    • 示例:

      Code Block
      languagego
      func ExampleIsReadable() {
      
    • 	// 
    • ignores some files
    • init
      	var (
      		
    • if
    • path = gfile.
    • Basename
    • Pwd(
    • path
    • ) 
    • == "gflie_example.txt" { return "" } return path }) for _, v := range list {
    • + gfile.Separator + "testdata/readline/file.log"
      	)
      
      	// Checks whether given `path` is readable.
      	fmt.Println(gfile.
    • Basename
    • IsReadable(
    • v
    • path))
    • }
    • 
      
      	// Output:
      	// 
    • sub_dir
    • true
      }
    ScanDirFileFunc

    IsWritable

    • 说明:扫描指定目录的文件(自定义过滤方法),支持递归扫描。

      说明:检查指定路径是否可写,如果路径是目录,则会创建临时文件检查是否可写,如果是文件则判断是否可以打开

    • 示例:
    • 格式: 

      Code Block
      languagego
      func 
    • ExampleScanDirFileFunc
    • IsWritable(
    • ) { // init var ( fileName = "gflie_example.txt" tempDir = gfile.TempDir("gfile_example_scan_dir_file_func") tempFile = gfile.Join(tempDir, fileName) fileName1 = "gflie_example_ignores.txt" tempFile1 = gfile.Join(tempDir, fileName1) tempSubDir = gfile.Join(tempDir, "sub_dir") tempSubFile
    • path string) bool 


    • 示例:

      Code Block
      languagego
      func ExampleIsWritable() {
      	// init
      	var (
      		path = gfile.
    • Join
    • Pwd(
    • tempSubDir, fileName
    • )
    • ) // write contents gfile.PutContents(tempFile, "goframe example content") gfile.PutContents(tempFile1, "goframe example content") gfile.PutContents(tempSubFile, "goframe example content"
    •  + gfile.Separator + "testdata/readline/file.log"
      	)
      
      	// 
    • scans
    • Checks 
    • directory
    • whether 
    • recursively
    • given 
    • exclusive
    • `path` 
    • of
    • is 
    • directories
    • writable.
      	
    • list, _ := gfile.ScanDirFileFunc(tempDir, "*.txt", true, func(path string) string { // ignores some files if gfile.Basename(path) == "gflie_example_ignores.txt" { return "" } return path }) for _, v := range list { fmt.Println(gfile.Basename(v)) } // Output: // gflie_example.txt // gflie_example.txt }

    常用目录

    Pwd

    • fmt.Println(gfile.IsWritable(path))
      
      	// Output:
      	// true
      }


    Chmod

    • 说明:使用指定的权限,更改指定路径的文件权限。

    • 格式: 

      Code Block
      languagego
      func Chmod(path string, mode os.FileMode) error


    • 示例:

      Code Block
      languagego
      func ExampleChmod() {
      	// init
      	var (
      		path = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      	)
      
      	// Get a FileInfo describing the named file.
      	stat, err := gfile.Stat(path)
      	if err != nil {
      		fmt.Println(err.Error())
      	}
      	// Show original mode
      	fmt.Println(stat.Mode
    • 说明:获取当前工作路径。
    • 示例:

      Code Block
      languagego
      func ExamplePwd() {
      	// Get absolute path of current working directory.
      	fmt.Println(gfile.Pwd())
      
      	// May Output:Change file model
      	gfile.Chmod(path, gfile.DefaultPermCopy)
      
      	// xxx/gf/os/gfile
      }

    Home

    • 说明:获取运行用户的主目录
    • 示例:

      Code Block
      languagego
      func ExampleHome() { // user's home directory homePath, _ := gfile.Home()
    • Get a FileInfo describing the named file.
      	stat, _ = gfile.Stat(path)
      	// Show the modified mode
      	fmt.Println(stat.Mode(
    • homePath
    • ))
      
      	//
    • May
    •  Output:
      	// -rw-r--r--
      	// 
    • C:\Users\hailaz
    • -rwxrwxrwx
      }

    TempDir


    文件/目录操作

    Mkdir

    • 说明:创建文件夹,支持递归创建(建议采用绝对路径),创建后的文件夹权限为:drwxr-xr-x
    • 格式: 

      Code Block
      languagego
      func Mkdir(path string) error
      说明:获取拼接系统临时路径后的绝对地址。


    • 示例:

      Code Block
      languagego
      func ExampleTempDirExampleMkdir() {
      	// init
      	var (
      		fileName = "gfile_example_basic_dir"
      	)
      
      	// fetch an absolute representation of path.
      	path := gfile.TempDir(fileName)
      
      	fmt.Println(path"gfile_example_basic_dir")
      	)
      
      	// Creates Output:directory
      	// /tmp/gfile_example_basic_dir
      }

    SelfPath

    • 说明:获取当前运行程序的绝对路径。

    • 示例:

      Code Block
      languagego
      func ExampleSelfPath() {gfile.Mkdir(path)
      
      	// GetCheck absoluteif file path of current running processdirectory exists
      	fmt.Println(gfile.SelfPathIsDir(path))
      
      	// May Output:
      	// xxx/___github_com_gogf_gf_v2_os_gfile__ExampleSelfPath
      }

    类型判断

    IsDir

    • true
      }


    Create

    • 说明:创建文件/文件夹,如果传入的路径中的文件夹不存在,则会自动创建文件夹以及文件,其中创建的文件权限为-rw-r–r–
    • 注意:如果需要创建文件的已存在,则会清空该文件的内容!
    • 格式: 

      Code Block
      languagego
      func Create(path string) (*os.File, error)
      说明:检查给定的路径是否是文件夹。


    • 示例:

      Code Block
      languagego
      func ExampleIsDirExampleCreate() {
      	// init
      	var (
      		path     = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      		filePathdataByte = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1"make([]byte, 50)
      	)
      	// ChecksCheck whether giventhe `path` a directory.
      	fmt.Println(gfile.IsDirfile exists
      	isFile := gfile.IsFile(path))
      
      	fmt.Println(gfile.IsDir(filePath))
      
      	// Output:(isFile)
      
      	// Creates file with given `path` recursively
      	fileHandle, _ := gfile.Create(path)
      	defer fileHandle.Close()
      
      	// true
      	// false
      }

    IsFile

    • 说明:检查给定的路径是否是文件。
    • 示例:

      Code Block
      languagego
      func ExampleIsFile() {
      	// init
      	var (
      		filePath = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      		dirPath  = gfile.TempDir("gfile_example_basic_dir")
      	)
      	// Checks whether given `path` a file, which means it's not a directory.
      	fmt.Println(gfile.IsFile(filePath))
      	fmt.Println(gfile.IsFile(dirPathWrite some content to file
      	n, _ := fileHandle.WriteString("hello goframe")
      
      	// Check whether the file exists
      	isFile = gfile.IsFile(path)
      
      	fmt.Println(isFile)
      	
      	// Reset file uintptr
      	unix.Seek(int(fileHandle.Fd()), 0, 0)
      	// Reads len(b) bytes from the File
      	fileHandle.Read(dataByte)
      
      	fmt.Println(string(dataByte[:n]))
      
      	// Output:
      	// false
      	// true
      	// falsehello goframe
      }

    权限操作

    IsReadable


    Open

    • 说明:以只读的方式打开文件/文件夹。
    • 格式: 

      Code Block
      languagego
      func Open(path string) (*os.File, error)


    • 说明:检查给定的路径是否可读。

    • 示例:

      Code Block
      languagego
      func ExampleIsReadableExampleOpen() {
      	// init
      	var (
      		path     = gfile.PwdJoin() + gfile.Separator + "testdata/readline/file.log"
      	)
      
      	// Checks whether given `path` is readable.
      	fmt.Println(gfile.IsReadable(path))
      
      	// Output:
      	// true
      }

    IsWritable

    • 说明:检查指定路径是否可写,如果路径是目录,则会创建临时文件检查是否可写,如果是文件则判断是否可以打开

    • 示例:

      Code Block
      languagego
      func ExampleIsWritable() {
      	// init
      	var (
      		path = gfile.Pwd() + gfile.Separator + "testdata/readline/file.log"
      	gfile.TempDir("gfile_example_basic_dir"), "file1")
      		dataByte = make([]byte, 4096)
      	)
      	// Open file or directory with READONLY model
      	file, _ := gfile.Open(path)
      	defer file.Close()
      
      	// Checks whether given `path` is writable.Read data
      	n, _ := file.Read(dataByte)
      
      	fmt.Println(gfile.IsWritable(pathstring(dataByte[:n]))
      
      	// Output:
      	// true
      }

    Chmod

    • hello goframe
      }


    OpenFile

    • 说明:以指定`flag`以及`perm`的方式打开文件/文件夹。
    • 格式: 

      Code Block
      languagego
      func OpenFile(path string, flag int, perm os.FileMode) (*os.File, error)
      说明:使用指定的权限,更改指定路径的文件权限。


    • 示例:

      Code Block
      languagego
      func ExampleChmodExampleOpenFile() {
      	// init
      	var (
      		path     = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      	)
      
      	//dataByte Get a FileInfo describing the named file.
      	stat, err := gfile.Stat(path)
      	if err != nil {
      		fmt.Println(err.Error())
      	}= make([]byte, 4096)
      	)
      	// Show original mode
      	fmt.Println(stat.Mode())
      
      	// Change file model
      	gfile.Chmod(path, gfile.DefaultPermCopy)
      
      	// Get a FileInfo describing the named file.
      	stat, _ = gfile.Stat(path)
      	// Show the modified mode
      	fmt.Println(stat.Mode())
      
      	// Output:
      	// -rw-r--r--
      	// -rwxrwxrwx
      }

    文件/目录操作

    Mkdir

    • 说明:创建文件夹,支持递归创建(建议采用绝对路径),创建后的文件夹权限为:drwxr-xr-x
    • 示例:

      Code Block
      languagego
      func ExampleMkdir() {
      	// init
      	var (
      		path = gfile.TempDir("gfile_example_basic_dir")
      	Opens file/directory with custom `flag` and `perm`
      	// Create if file does not exist,it is created in a readable and writable mode,prem 0777
      	openFile, _ := gfile.OpenFile(path, os.O_CREATE|os.O_RDWR, gfile.DefaultPermCopy)
      	defer openFile.Close()
      
      	// Write some content to file
      	writeLength, _ := openFile.WriteString("hello goframe test open file")
      
      	fmt.Println(writeLength)
      
      	// CreatesRead directorydata
      	gfile.Mkdir(path)
      
      	// Check if directory existsunix.Seek(int(openFile.Fd()), 0, 0)
      	n, _ := openFile.Read(dataByte)
      
      	fmt.Println(gfile.IsDir(pathstring(dataByte[:n]))
      
      	// Output:
      	// true 28
      	// hello goframe test open file
      }
    Create

    OpenWithFalg

    • 说明:以指定`flag`的方式打开文件/文件夹。
    • 格式: 

      Code Block
      languagego
      func OpenWithFlag(path string, flag int) (*os.File, error)
    • 说明:创建文件/文件夹,如果传入的路径中的文件夹不存在,则会自动创建文件夹以及文件,其中创建的文件权限为-rw-r–r–
    • 注意:如果需要创建文件的已存在,则会清空该文件的内容!


    • 示例:

      Code Block
      languagego
      func ExampleCreateExampleOpenWithFlag() {
      	// init
      	var (
      		path     = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      		dataByte = make([]byte, 504096)
      	)
      
      	// CheckOpens whetherfile/directory thewith filecustom exists`flag`
      	isFile := gfile.IsFile(path)
      
      	fmt.Println(isFile)
      
      	// Creates file with given `path` recursively
      	fileHandle// Create if file does not exist,it is created in a readable and writable mode with default `perm` is 0666
      	openFile, _ := gfile.CreateOpenWithFlag(path, os.O_CREATE|os.O_RDWR)
      	defer fileHandleopenFile.Close()
      
      	// Write some content to file
      	nwriteLength, _ := fileHandleopenFile.WriteString("hello goframe")
      
      	// Check whether the test open file exists
      	isFile = gfile.IsFile(pathwith flag")
      
      	fmt.Println(isFilewriteLength)
      	
      	// ResetRead file uintptrdata
      	unix.Seek(int(fileHandleopenFile.Fd()), 0, 0)
      	//n, Reads len(b) bytes from the File
      	fileHandle_ := openFile.Read(dataByte)
      
      	fmt.Println(string(dataByte[:n]))
      
      	// Output:
      	// false
      	// true38
      	// hello goframe test open file with flag
      }
    Open

    OpenWithFalgPerm

    • 说明:以指定`flag`以及`perm`的方式打开文件/文件夹。
    • 格式: 

      Code Block
      languagego
      func OpenWithFlagPerm(path string, flag int, perm os.FileMode) (*os.File, error) 
      说明:以只读的方式打开文件/文件夹。


    • 示例:

      Code Block
      languagego
      func ExampleOpenExampleOpenWithFlagPerm() {
      	// init
      	var (
      		path     = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      		dataByte = make([]byte, 4096)
      	)
      
      	// Opens file/directory with custom `flag` and `perm`
      	// OpenCreate if file or directory with READONLY model
      	filedoes not exist,it is created in a readable and writable mode with  `perm` is 0777
      	openFile, _ := gfile.OpenOpenWithFlagPerm(path, os.O_CREATE|os.O_RDWR, gfile.DefaultPermCopy)
      	defer fileopenFile.Close()
      
      	// Read dataWrite some content to file
      	nwriteLength, _ := fileopenFile.Read(dataByteWriteString("hello goframe test open file with flag and perm")
      
      	fmt.Println(string(dataByte[:n])writeLength)
      
      	// Output:
      	// hello goframe
      }

    OpenFile

    • // Read data
      	unix.Seek(int(openFile.Fd()), 0, 0)
      	n, _ := openFile.Read(dataByte)
      
      	fmt.Println(string(dataByte[:n]))
      
      	// Output:
      	// 38
      	// hello goframe test open file with flag
      }


    Stat

    • 说明:获取给定路径的文件详情。
    • 格式: 

      Code Block
      languagego
      func Stat(path string) (os.FileInfo, error)


    • 示例:

      Code Block
      languagego
      func ExampleStat() {
      	// init
      	var (
      		path = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      	)
      	// Get a FileInfo describing the named file.
      	stat
    • 说明:以指定`flag`以及`perm`的方式打开文件/文件夹。
    • 示例:

      Code Block
      languagego
      func ExampleOpenFile() {
      	// init
      	var (
      		path     = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      		dataByte = make([]byte, 4096)
      	)
      	// Opens file/directory with custom `flag` and `perm`
      	// Create if file does not exist,it is created in a readable and writable mode,prem 0777
      	openFile, _ := gfile.OpenFile(path, os.O_CREATE|os.O_RDWR, gfile.DefaultPermCopy)
      	defer openFile.Close()
      
      	// Write some content to file
      	writeLength, _ := openFile.WriteString("hello goframe test open file")
      
      	fmt.Println(writeLength)
      
      	// Read data
      	unix.Seek(int(openFile.Fd()), 0, 0)
      	n, _ := openFilegfile.ReadStat(dataBytepath)
      
      	fmt.Println(string(dataByte[:n]stat.Name())
      
      	// Output:
      	// 28
      	// hello goframe test open file
      }

    OpenWithFalg

  • 说明:以指定`flag`的方式打开文件/文件夹。
  • 示例:

    • 
      	fmt.Println(stat.IsDir())
      	fmt.Println(stat.Mode())
      	fmt.Println(stat.ModTime())
      	fmt.Println(stat.Size())
      	fmt.Println(stat.Sys())
      
      	// May Output:
      	// file1
      	// false
      	// -rwxr-xr-x
      	// 2021-12-02 11:01:27.261441694 +0800 CST
      	// &{16777220 33261 1 8597857090 501 20 0 [0 0 0 0] {1638414088 192363490} {1638414087 261441694} {1638414087 261441694} {1638413480 485068275} 38 8 4096 0 0 0 [0 0]}
      }


    Copy

    • 说明:支持复制文件或目录
    • 格式: 

      Code Block
      languagego
      func Copy(src string, dst string) error 
    Code Block
    languagego
    func ExampleOpenWithFlag() {
    	// init
    	var (
    		path     = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
    		dataByte = make([]byte, 4096)
    	)
    
    	// Opens file/directory with custom `flag`
    	// Create if file does not exist,it is created in a readable and writable mode with default `perm` is 0666
    	openFile, _ := gfile.OpenWithFlag(path, os.O_CREATE|os.O_RDWR)
    	defer openFile.Close()
    
    	// Write some content to file
    	writeLength, _ := openFile.WriteString("hello goframe test open file with flag")
    
    	fmt.Println(writeLength)
    
    	// Read data
    	unix.Seek(int(openFile.Fd()), 0, 0)
    	n, _ := openFile.Read(dataByte)
    
    	fmt.Println(string(dataByte[:n]))
    
    	// Output:
    	// 38
    	// hello goframe test open file with flag
    }

    OpenWithFalgPerm

    • 说明:以指定`flag`以及`perm`的方式打开文件/文件夹。


    • 示例:

      Code Block
      languagego
      func 
    • ExampleOpenWithFlagPerm
    • ExampleCopy() {
      	// init
      	var (
      		
    • path
    • srcFileName 
    • = "gflie_example.txt"
      		srcTempDir  = 
    • gfile.Join(
    • gfile.TempDir("gfile_example_
    • basic
    • copy_
    • dir
    • src")
    • , "file1")
    • 
      		
    • dataByte
    • srcTempFile = 
    • make([]byte, 4096)
    • gfile.Join(srcTempDir, srcFileName)
      
      	
    • // Opens file/directory with custom `flag` and `perm`
    • 	//
    • Create if file does not exist,it is created in a readable and writable mode with `perm` is 0777 openFile, _ := gfile.OpenWithFlagPerm(path, os.O_CREATE|os.O_RDWR, gfile.DefaultPermCopy) defer openFile.Close(
    •  copy file
      		dstFileName = "gflie_example_copy.txt"
      		dstTempFile = gfile.Join(srcTempDir, dstFileName)
      
      		// copy dir
      		dstTempDir = gfile.TempDir("gfile_example_copy_dst")
      	)
      
      	// 
    • Write some content to file writeLength, _ := openFile.WriteString("hello goframe test open file with flag and perm")
    • write contents
      	gfile.PutContents(srcTempFile, "goframe example copy")
      
      	// copy file
      	gfile.Copy(srcTempFile, dstTempFile)
      
      	// read contents after copy file
      	fmt.Println
    • (writeLength
    • (gfile.GetContents(dstTempFile))
      
      	// 
    • Read
    • copy 
    • data
    • dir
      	
    • unix
    • gfile.
    • Seek(int(openFile.Fd()), 0, 0) n
    • Copy(srcTempDir, dstTempDir)
      
      	// list copy dir file
      	fList, _ := 
    • openFile
    • gfile.
    • Read(dataByte)
    • ScanDir(dstTempDir, "*", false)
      	for _, v := range fList {
      		fmt.Println(
    • string(dataByte[:n]
    • gfile.Basename(v))
      	}
      
      	// Output:
      	// goframe example 
    • 38
    • copy
      	// 
    • hello goframe test open file with flag }

    Stat

    • gflie_example.txt
      	// gflie_example_copy.txt
      }


    CopyFile

    • 说明:复制文件
    • 格式: 

      Code Block
      languagego
      func CopyFile(src, dst string) (err error)


    • 说明:获取给定路径的文件详情。
    • 示例:

      Code Block
      languagego
      
      func 
    • ExampleStat
    • ExampleCopyFile() {
      	// init
      	var (
      		
    • path
    • srcFileName = 
    • gfile.Join(
    • "gflie_example.txt"
      		srcTempDir  = gfile.TempDir("gfile_example_
    • basic
    • copy_
    • dir
    • src")
      		srcTempFile = gfile.Join(srcTempDir, 
    • "file1"
    • srcFileName)
      
      	
    • ) // Get a FileInfo describing the named file. stat, _ :
    • 	// copy file
      		dstFileName = "gflie_example_copy.txt"
      		dstTempFile = gfile.
    • Stat(path) fmt.Println(stat.Name()) fmt.Println(stat.IsDir()) fmt.Println(stat.Mode()) fmt.Println(stat.ModTime()) fmt.Println(stat.Size()) fmt.Println(stat.Sys()
    • Join(srcTempDir, dstFileName)
      	)
      
      	// write contents
      	gfile.PutContents(srcTempFile, "goframe example copy")
      
      	// copy file
      	gfile.CopyFile(srcTempFile, dstTempFile)
      
      	// read contents 
    • May Output: // file1 // false // -rwxr-xr-x
    • after copy file
      	fmt.Println(gfile.GetContents(dstTempFile))
      	
      	// 
    • 2021-12-02 11:01:27.261441694 +0800 CST
    • Output:
      	// 
    • &{16777220 33261 1 8597857090 501 20 0 [0 0 0 0] {1638414088 192363490} {1638414087 261441694} {1638414087 261441694} {1638413480 485068275} 38 8 4096 0 0 0 [0 0]} }

    Copy

    • goframe example copy
      }


    CopyDir

    • 说明:支持复制文件或目录
    • 格式: 

      Code Block
      languagego
      func CopyDir(src string, dst string) error 
      说明:支持复制文件或目录


    • 示例:

      Code Block
      languagego
      func ExampleCopyExampleCopyDir() {
      	// init
      	var (
      		srcFileName = "gflie_example.txt"
      		srcTempDir  = gfile.TempDir("gfile_example_copy_src")
      		srcTempFile = gfile.Join(srcTempDir, srcFileName)
      
      		// copy file
      		dstFileName = "gflie_example_copy.txt"
      		dstTempFile = gfile.Join(srcTempDir, dstFileName)
      
      		// copy dir
      		dstTempDir = gfile.TempDir("gfile_example_copy_dst")
      	)
      
      	// write contents
      	gfile.PutContents(srcTempFile, "goframe example copy"(srcTempDir, dstFileName)
      
      		// copy filedir
      		dstTempDir = gfile.Copy(srcTempFile, dstTempFile)
      TempDir("gfile_example_copy_dst")
      	)
      	// read contents after copy file
      	fmt.Println(gfile.GetContents(dstTempFile))
      
      	// copy dir
      	gfile.CopyCopyDir(srcTempDir, dstTempDir)
      
      	// list copy dir file
      	fList, _ := gfile.ScanDir(dstTempDir, "*", false)
      	for _, v := range fList {
      		fmt.Println(gfile.Basename(v))
      	}
      
      	// Output:
      	// goframe example copy
      	// gflie_example.txt
      	// gflie_example_copy.txt
      }


    Move

    • 说明:将src重命名为dst

    • 注意:如果dst已经存在并且是文件,将会被替换造成数据丢失!
    • 格式: 

      Code Block
      languagego
      func Move(src string, dst string) error 


    • 示例:

      Code Block
      languagego
      func ExampleMove() {
      	// init
      	var (
      		srcPath = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      		dstPath = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file2")
      	)
      	// Check is file
      	fmt.Println(gfile.IsFile(dstPath))
      
      	//  Moves `src` to `dst` path.
      	// If `dst` already exists and is not a directory, it'll be replaced.
      	gfile.Move(srcPath, dstPath)
      
      	fmt.Println(gfile.IsFile(srcPath))
      	fmt.Println(gfile.IsFile(dstPath))
      
      	// Output:
      	// false
      	// false
      	// true
      }


    Rename

    • 说明:Move的别名,将src重命名为dst

    • 注意:如果dst已经存在并且是文件,将会被替换造成数据丢失!
    • 格式: 

      Code Block
      languagego
      func Rename(src string, dst string) error


    • 示例:

      Code Block
      languagego
      func ExampleRename() {
      	// init
      	var (
      		srcPath = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file2")
      		dstPath = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      	)
      	// Check is file
      	fmt.Println(gfile.IsFile(dstPath))
      
      	//  renames (moves) `src` to `dst` path.
      	// If `dst` already exists and is not a directory, it'll be replaced.
      	gfile.Rename(srcPath, dstPath)
      
      	fmt.Println(gfile.IsFile(srcPath))
      	fmt.Println(gfile.IsFile(dstPath))
      
      	// Output:
      	// false
      	// false
      	// true
      }

    Remove

    •  true
      }


    Remove

    • 说明:删除给定路径的文件或文件夹。

    • 格式: 

      Code Block
      languagego
      func Remove(path string) error
      说明:删除给定路径的文件或文件夹。


    • 示例:

      Code Block
      languagego
      func ExampleRemove() {
      	// init
      	var (
      		path = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      	)
      
      	// Checks whether given `path` a file, which means it's not a directory.
      	fmt.Println(gfile.IsFile(path))
      
      	// deletes all file/directory with `path` parameter.
      	gfile.Remove(path)
      
      	// Check again
      	fmt.Println(gfile.IsFile(path))
      
      	// Output:
      	// true
      	// false
      }


    IsEmpty

    • 说明:检查给定的路径,如果是文件夹则检查是否包含文件,如果是文件则检查文件大小是否为空。

    • 格式: 

      Code Block
      languagego
      func IsEmpty(path string) bool 


    • 示例:

      Code Block
      languagego
      func ExampleIsEmpty() {
      	// init
      	var (
      		path = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      	)
      
      	// Check whether the `path` is empty
      	fmt.Println(gfile.IsEmpty(path))
      
      	// Truncate file
      	gfile.Truncate(path, 0)
      
      	// Check whether the `path` is empty
      	fmt.Println(gfile.IsEmpty(path))
      
      	// Output:
      	// false
      	// true
      }


    DirNames

    • 说明:获取给定路径下的文件列表,返回的是一个切片。

    • 格式: 

      Code Block
      languagego
      func DirNames(path string) ([]string, error)


    • 示例:

      Code Block
      languagego
      func ExampleDirNames() {
      	// init
      	var (
      		path = gfile.TempDir("gfile_example_basic_dir")
      	)
      	// Get sub-file names of given directory `path`.
      	dirNames, _ := gfile.DirNames(path)
      
      	fmt.Println(dirNames)
      
      	// May Output:
      	// [file1]
      }


    Glob

    • 说明:模糊搜索给定路径下的文件列表,支持正则,第二个参数控制返回的结果是否带上绝对路径。

    • 格式: 

      Code Block
      languagego
      func Glob(pattern string, onlyNames ...bool) ([]string, error)


    • 示例:

      Code Block
      languagego
      func ExampleGlob() {
      	// init
      	var (
      		path = gfile.Pwd() + gfile.Separator + "*_example_basic_test.go"
      	)
      	// Get sub-file names of given directory `path`.
      	// Only show file name
      	matchNames, _ := gfile.Glob(path, true)
      
      	fmt.Println(matchNames)
      
      	// Show full path of the file
      	matchNames, _ = gfile.Glob(path, false)
      
      	fmt.Println(matchNames)
      
      	// May Output:
      	// [gfile_z_example_basic_test.go]
      	// [xxx/gf/os/gfile/gfile_z_example_basic_test.go]
      }

    Exists

    • .go]
      }


    Exists

    • 说明:检查给定的路径是否存在 。
    • 格式: 

      Code Block
      languagego
      func Exists(path string) bool
      说明:检查给定的路径是否存在 。


    • 示例:

      Code Block
      languagego
      func ExampleExists() {
      	// init
      	var (
      		path = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      	)
      	// Checks whether given `path` exist.
      	fmt.Println(gfile.Exists(path))
      
      	// Output:
      	// true
      }


    Chdir

    • 说明:使用给定的路径,更改当前的工作路径。
    • 格式: 

      Code Block
      languagego
      func Chdir(dir string) error


    • 示例:

      Code Block
      languagego
      func ExampleChdir() {
      	// init
      	var (
      		path = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      	)
      	// Get current working directory
      	fmt.Println(gfile.Pwd())
      
      	// Changes the current working directory to the named directory.
      	gfile.Chdir(path)
      
      	// Get current working directory
      	fmt.Println(gfile.Pwd())
      
      	// May Output:
      	// xxx/gf/os/gfile
      	// /tmp/gfile_example_basic_dir/file1
      }


    路径操作

    Join

    • 说明:将多个字符串路径通过`/`进行连接。
    • 格式: 

      Code Block
      languagego
      func Join(paths ...string) string 


    • 示例:

      Code Block
      languagego
      func ExampleJoin() {
      	// init
      	var (
      		dirPath  = gfile.TempDir("gfile_example_basic_dir")
      		filePath = "file1"
      	)
      
      	// Joins string array paths with file separator of current system.
      	joinString := gfile.Join(dirPath, filePath)
      
      	fmt.Println(joinString)
      
      	// Output:
      	// /tmp/gfile_example_basic_dir/file1
      }


    Abs

    • 说明:返回路径的绝对路径。

    • 格式: 

      Code Block
      languagego
      func Abs(path string) string


    • 示例:

      Code Block
      languagego
      func ExampleAbs() {
      	// init
      	var (
      		path = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      	)
      
      	// Get an absolute representation of path.
      	fmt.Println(gfile.Abs(path))
      
      	// Output:
      	// /tmp/gfile_example_basic_dir/file1
      }


    RealPath

    • 说明:获取给定路径的绝对路径地址。

    • 注意:如果文件不存在则返回空。

    • 格式: 

      Code Block
      languagego
      func RealPath(path string) string


    • 示例:

      Code Block
      languagego
      func ExampleRealPath() {
      	// init
      	var (
      		realPath  = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      		worryPath = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "worryFile")
      	)
      
      	// fetch an absolute representation of path.
      	fmt.Println(gfile.RealPath(realPath))
      	fmt.Println(gfile.RealPath(worryPath))
      
      	// Output:
      	// /tmp/gfile_example_basic_dir/file1
      	//
      }

    SelfName

    • /
      }


    SelfName

    • 说明:获取当前运行程序的名称。

    • 格式: 

      Code Block
      languagego
      func SelfName() string 
      说明:获取当前运行程序的名称。


    • 示例:

      Code Block
      languagego
      func ExampleSelfName() {
      
      	// Get file name of current running process
      	fmt.Println(gfile.SelfName())
      
      	// May Output:
      	// ___github_com_gogf_gf_v2_os_gfile__ExampleSelfName
      }


    Basename

    • 说明:获取给定路径中的最后一个元素,包含扩展名。

    • 格式: 

      Code Block
      languagego
      func Basename(path string) string


    • 示例:

      Code Block
      languagego
      func ExampleBasename() {
      	// init
      	var (
      		path = gfile.Pwd() + gfile.Separator + "testdata/readline/file.log"
      	)
      
      	// Get the last element of path, which contains file extension.
      	fmt.Println(gfile.Basename(path))
      
      	// Output:
      	// file.log
      }


    Name

    • 说明:获取给定路径中的最后一个元素,不包含扩展名。

    • 格式:

      Code Block
      languagego
      func Name(path string) string


    • 示例:

      Code Block
      languagego
      func ExampleName() {
      	// init
      	var (
      		path = gfile.Pwd() + gfile.Separator + "testdata/readline/file.log"
      	)
      
      	// Get the last element of path without file extension.
      	fmt.Println(gfile.Name(path))
      
      	// Output:
      	// file
      }


    Dir

    • 说明:获取给定路径的目录部分,排除最后的元素。

    • 格式: 

      Code Block
      languagego
      func Dir(path string) string 


    • 示例:

      Code Block
      languagego
      func ExampleDir() {
      	// init
      	var (
      		path = gfile.Join(gfile.TempDir("gfile_example_basic_dir"), "file1")
      	)
      
      	// Get all but the last element of path, typically the path's directory.
      	fmt.Println(gfile.Dir(path))
      
      	// Output:
      	// /tmp/gfile_example_basic_dir
      }


    Ext

    • 说明:获取给定路径的扩展名,包含`.`。

    • 格式: 

      Code Block
      languagego
      func Ext(path string) string


    • 示例:

      Code Block
      languagego
      func ExampleExt() {
      	// init
      	var (
      		path = gfile.Pwd() + gfile.Separator + "testdata/readline/file.log"
      	)
      
      	// Get the file name extension used by path.
      	fmt.Println(gfile.Ext(path))
      
      	// Output:
      	// .log
      }


    ExtName

    • 说明:获取给定路径的扩展名,不包含`.`。格式: 

      Code Block
      languagego
      func ExtName(path string) string


    • 示例:

      Code Block
      languagego
      func ExampleExtName() {
      	// init
      	var (
      		path = gfile.Pwd() + gfile.Separator + "testdata/readline/file.log"
      	)
      
      	// Get the file name extension used by path but the result does not contains symbol '.'.
      	fmt.Println(gfile.ExtName(path))
      
      	// Output:
      	// log
      }








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