Go-目录操作

判断目录是否存在、创建（多级）目录

package main

import (
    "fmt"
    "os"
)

func IsDir(name string) bool {
    fi, err := os.Stat(name)
    if err != nil {
        fmt.Println("Error: ", err)
        return false
    }

    return fi.IsDir()
}

func CreateDir(name string) bool {
    if IsDir(name) {
        fmt.Printf("%s is already a directory.\n", name)
        return true
    }

    if createDirImpl(name) {
        fmt.Println("Create directory successfully.")
        return true
    } else {
        return false
    }
}

func createDirImpl(name string) bool {
    err := os.MkdirAll(name, 0666)
    if err == nil {
        return true
    } else {
        fmt.Println("Error: ", err)
        return false
    }
}

/*
D:\examples\go>go run dir_ex.go
Error:  GetFileAttributesEx ./a/b/c: The system cannot find the path specified.
Create directory successfully.
./a/b/c is already a directory.

D:\examples\go>
*/
func main() {
    name := "./a/b/c"
    CreateDir(name)
    CreateDir(name)
}