基本类型转换性能基准测试：
john@john-B85M:~/Workspace/Go/GOPATH/src/github.com/gogf/gf/v2/util/gconv$ go test *.go -bench=".*" -benchmem goos: linux goarch: amd64 BenchmarkString-4 20000000 71.8 ns/op 24 B/op 2 allocs/op BenchmarkInt-4 100000000 22.2 ns/op 8 B/op 1 allocs/op BenchmarkInt8-4 100000000 24.5 ns/op 8 B/op 1 allocs/op BenchmarkInt16-4 50000000 23.8 ns/op 8 B/op 1 allocs/op BenchmarkInt32-4 100000000 24.1 ns/op 8 B/op 1 allocs/op BenchmarkInt64-4 100000000 21.7 ns/op 8 B/op 1 allocs/op BenchmarkUint-4 100000000 22.2 ns/op 8 B/op 1 allocs/op BenchmarkUint8-4 50000000 25.6 ns/op 8 B/op 1 allocs/op BenchmarkUint16-4 50000000 32.1 ns/op 8 B/op 1 allocs/op BenchmarkUint32-4 50000000 27.7 ns/op 8 B/op 1 allocs/op BenchmarkUint64-4 50000000 28.1 ns/op 8 B/op 1 allocs/op BenchmarkFloat32-4 10000000 155 ns/op 24 B/op 2 allocs/op BenchmarkFloat64-4 10000000 177 ns/op 24 B/op 2 allocs/op BenchmarkTime-4 5000000 240 ns/op 72 B/op 4 allocs/op BenchmarkTimeDuration-4 50000000 26.2 ns/op 8 B/op 1 allocs/op BenchmarkBytes-4 10000000 149 ns/op 128 B/op 3 allocs/op BenchmarkStrings-4 10000000 223 ns/op 40 B/op 3 allocs/op BenchmarkInts-4 20000000 55.0 ns/op 16 B/op 2 allocs/op BenchmarkFloats-4 10000000 186 ns/op 32 B/op 3 allocs/op BenchmarkInterfaces-4 20000000 66.6 ns/op 24 B/op 2 allocs/op PASS ok command-line-arguments 35.356s