golang中filepath包的使用

func Abs(path string) (string, error)

package main
import (  
    "path/filepath"
  "os"
  "fmt")
func main() {  //
  pName := os.Args[0]
  absName, err := filepath.Abs(pName)  
  if err != nil{
    fmt.Println(err)
  }
  fmt.Println(absName)
}

func Base(path string) string

package main
import (  
  "path/filepath"
  "fmt")
func main() {
  baseName := filepath.Base("/a/b/c/e.txt")
  fmt.Println(baseName)
}

func Clean(path string) string

package main
import (   
  "path/filepath"
  "fmt")
func main() {
  p := "../..//././//a/b/c.txt"
  pc := filepath.Clean(p)
  fmt.Println(pc)
}

func Dir(path string) string

package main
import (  
    "path/filepath"
  "fmt")
func main() {
  d := filepath.Dir("/a/b/c/d.txt")
  fmt.Println(d)
}

func EvalSymlinks(path string) (string, error)

package mainimport (  "path/filepath"
  "fmt")func main() {
  e, _:= filepath.EvalSymlinks("/Users/hyhu/SourcePrj/mysourceprj")
  fmt.Println(e)
}

func Ext(path string) string

package main
import (  "path/filepath"
  "fmt")
func main() {
  e := filepath.Ext("/Users/1.txt")
  fmt.Println(e)
}

func FromSlash(path string) string

package main
import (  "path/filepath"
  "fmt")
func main() {  //windows下有效果
  r := filepath.FromSlash("/a//b/c/d.txt")
  fmt.Println(r)
}

func Glob(pattern string) (matches []string, err error)

package main
import (  "path/filepath"
  "fmt")
func main() {
  m,_ := filepath.Glob("/usr/*")
  fmt.Println(m)
}

func HasPrefix(p, prefix string) bool

Go1.7中已经废弃使用

func IsAbs(path string) bool

package main
import (  
    "path/filepath"
  "fmt"
)
func main() {
  b := filepath.IsAbs("/a/b/c/d.txt")
  fmt.Println(b)
  b = filepath.IsAbs("d.txt")
  fmt.Println(b)
}

func Join(elem ...string) string

package main
import (
  "fmt"
  "path/filepath")
func main() {
  fmt.Println("On Unix:")
  fmt.Println(filepath.Join("a", "b", "c"))
  fmt.Println(filepath.Join("a", "b/c"))
  fmt.Println(filepath.Join("a/b", "c"))
  fmt.Println(filepath.Join("a/b", "/c"))
}

func Match(pattern, name string) (matched bool, err error)

package main
import (
  "path/filepath"
  "fmt")
func main() {  //windows下有效果
  m,_ := filepath. Match("/usr/*", "/usr/local")
  fmt.Println(m)
}

func Rel(basepath, targpath string) (string, error)

package main
import (
  "fmt"
  "path/filepath"
)
func main() {
  paths := []string{    "/a/b/c",    "/b/c",    "./b/c",
  }
  base := "/a"
  fmt.Println("On Unix:")  
  for _, p := range paths {
    rel, err := filepath.Rel(base, p)
    fmt.Printf("%q: %q %v\n", p, rel, err)
  }
}

func Split(path string) (dir, file string)

package main
import (  "fmt"
  "path/filepath")
func main() {
  paths := []string{    "/home/arnie/amelia.jpg",    "/mnt/photos/",    "rabbit.jpg",    "/usr/local//go",
  }
  fmt.Println("On Unix:")  
  for _, p := range paths {
    dir, file := filepath.Split(p)
    fmt.Printf("input: %q\n\tdir: %q\n\tfile: %q\n", p, dir, file)
  }
}

func SplitList(path string) []string

package main
import (
  "fmt"
  "path/filepath")
func main() {
  fmt.Println("On Unix:", filepath.SplitList("/a/b/c:/usr/bin"))
}

func ToSlash(path string) string

package main
import (  "path/filepath"
  "fmt")
func main() {  //windows下有效果
  r := filepath.ToSlash("\\a\\b\\c/d.txt")
  fmt.Println(r)
}

func VolumeName(path string) string

windows平台下
C:\foo\bar 对应的结果 C:

\\host\share\foo 对应的结果 \\host\share

package main
import (
  "path/filepath"
  "fmt")
func main() {  
    v := filepath.VolumeName("C:\foo\bar")
  fmt.Println(v)
  v = filepath.VolumeName(`\\host\share\foo"`)
  fmt.Println(v)
}

func Walk(root string, walkFn WalkFunc) error

同下

type WalkFunc

package main
import (
  "path/filepath"
  "fmt"
  "os")
func MyWalkFunc (path string, info os.FileInfo, err error) error{
  var e error
  fmt.Println(path, info.Name(), info.Size(), info.Mode(), info.ModTime())
  return e
}
func main() {
  filepath.Walk("/", MyWalkFunc)
}

本文来自:51CTO博客

感谢作者:ck_god

查看原文:golang中filepath包的使用

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