go语言实现遍历目录，及查找特定的文件类型

// filelist.go
package main

import (
    //"flag"
    "fmt"
    "os"
    "path/filepath"
    "strings"
)

var (
    ostype = os.Getenv("GOOS") // 获取系统类型
)

var listfile []string //获取文件列表

func Listfunc(path string, f os.FileInfo, err error) error {
    var strRet string
    strRet, _ = os.Getwd()
    //ostype := os.Getenv("GOOS") // windows, linux

    if ostype == "windows" {
        strRet += "\"
    } else if ostype == "linux" {
        strRet += "/"
    }

    if f == nil {
        return err
    }
    if f.IsDir() {
        return nil
    }

    strRet += path //+ "
"

    //用strings.HasSuffix(src, suffix)//判断src中是否包含 suffix结尾
    ok := strings.HasSuffix(strRet, ".go")
    if ok {

        listfile = append(listfile, strRet) //将目录push到listfile []string中
    }
    //fmt.Println(ostype) // print ostype
    fmt.Println(strRet) //list the file

    return nil
}

func getFileList(path string) string {
    //var strRet string
    err := filepath.Walk(path, Listfunc) //

    if err != nil {
        fmt.Printf("filepath.Walk() returned %v
", err)
    }

    return " "
}

func ListFileFunc(p []string) {
    for index, value := range p {
        fmt.Println("Index = ", index, "Value = ", value)
    }
}

func main() {
    //flag.Parse()
    //root := flag.Arg(0)
    //fmt.Println()
    var listpath string
    fmt.Scanf("%s", &listpath)
    getFileList(listpath)
    ListFileFunc(listfile)
    //getFileList(root)

}

运行效果如下：

Administrator@WIN7-20131114US /cygdrive/e/golang_test/FolderList
$ ./filelist
.
E:golang_testFolderList.gitCOMMIT_EDITMSG
E:golang_testFolderList.gitHEAD
E:golang_testFolderList.gitconfig
E:golang_testFolderList.gitdescription
E:golang_testFolderList.githooksapplypatch-msg.sample
E:golang_testFolderList.githookscommit-msg.sample
E:golang_testFolderList.githookspost-update.sample
E:golang_testFolderList.githookspre-applypatch.sample
E:golang_testFolderList.githookspre-commit.sample
E:golang_testFolderList.githookspre-rebase.sample
E:golang_testFolderList.githooksprepare-commit-msg.sample
E:golang_testFolderList.githooksupdate.sample
E:golang_testFolderList.gitindex
E:golang_testFolderList.gitinfoexclude
E:golang_testFolderList.gitlogsHEAD
E:golang_testFolderList.gitlogs
efsheadsmaster
E:golang_testFolderList.gitlogs
efs
emotesoriginmaster
E:golang_testFolderList.gitobjects261859e5deb5e8b620e8effcdddbd76f749f89db
E:golang_testFolderList.gitobjects3d8e579829a9d9f604604e81f008f536da785a0a
E:golang_testFolderList.gitobjects8d362f848a2be8746747bf8377ed0db288a30fa7
E:golang_testFolderList.gitobjects9726e0fab404ab3ee9886b2e319df56326ac8874
E:golang_testFolderList.gitobjectsaaa29dfb8415b1fefcfe4eddd799b0fc516c3f8a
E:golang_testFolderList.gitobjectsdbcbdce2e9c70e4023594cee8e4fefe9d5394934
E:golang_testFolderList.gitobjectse251918e7226b197e8ad32cbe30c61ddbd262f9a
E:golang_testFolderList.gitobjectsfff5e740d47a1451f7d778de8016ebb3dd6c58dd
E:golang_testFolderList.git
efsheadsmaster
E:golang_testFolderList.git
efs
emotesoriginmaster
E:golang_testFolderListREADME.md
E:golang_testFolderListfilelist.exe
E:golang_testFolderListfilelist.go
Index =  0 Value =  E:golang_testFolderListfilelist.go