golang 實現並發計算檔案數量

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package mainimport ("fmt""io/ioutil""os")func listDir(path string, ch chan int) {fmt.Println("waiting .....  read path:" + path)files, _ := ioutil.ReadDir(path)FileSlice := []string{}DirSlice := []string{}for _, fi := range files {if fi.IsDir() {//listDir(path + "/" + fi.Name())DirSlice = append(DirSlice, path+"/"+fi.Name())//fmt.Println("dir:" + path + "/" + fi.Name())} else {FileSlice = append(FileSlice, path+"/"+fi.Name())}}//return slicevar count intcount = 0//var FindFiles stringfor _, value := range FileSlice {fmt.Println("file:" + value)//FindFiles += value + ";"count++}//find sub directory by go patternDirCount := len(DirSlice)fmt.Println("dir len:", DirCount)if DirCount > 0 {DirCH := make([]chan int, DirCount)i := 0for _, value := range DirSlice {fmt.Println("dir:" + value)DirCH[i] = make(chan int)go listDir(value, DirCH[i])i++}fmt.Println("wait routine return")for _, chs := range DirCH {returnCount := <-chsfmt.Println("return count=", returnCount)count += returnCount//ReturnFiles := <-chs//if len(ReturnFiles) > 0 {//FindFiles += ReturnFiles + ";"//fmt.Println("list dir chan<-" + ReturnFiles)//}}}//return resultsfmt.Println("count=", count)ch <- count //FindFiles}func main() {if len(os.Args) < 2 {fmt.Println("please input param of path.")return}fmt.Println(os.Args[1])path := os.Args[1] //"C:/Users/Administrator/Desktop/publish/test"//path := "c:/QQSave"ch := make(chan int)go listDir(path, ch)fmt.Println("chan<-", <-ch)}