go递归遍历文件目录

go递归遍历文件目录

package main
 
import (
    "fmt"
    "io/ioutil"
    "log"
)
 
//文件目录树形结构节点
type dirTreeNode struct {
    name  string
    child []dirTreeNode
}
 
//递归遍历文件目录
func getDirTree(pathName string) (dirTreeNode, error) {
    rd, err := ioutil.ReadDir(pathName)
    if err != nil {
        log.Fatalf("Read dir '%s' failed: %v", pathName, err)
    }
    var tree, childNode dirTreeNode
    tree.name = pathName
    var name, fullName string
    for _, fileDir := range rd {
        name = fileDir.Name()
        fullName = pathName + "/" + name
        if fileDir.IsDir() {
            childNode, err = getDirTree(fullName)
            if err != nil {
                log.Fatalf("Read dir '%s' failed: %v", fullName, err)
            }
        } else {
            childNode.name = name
            childNode.child = nil
        }
        tree.child = append(tree.child, childNode)
    }
    return tree, nil
}
 
//递归打印文件目录
func printDirTree(tree dirTreeNode, prefix string) {
    fmt.Println(prefix + tree.name)
    if len(tree.child) > 0 {
        prefix += "----"
        for _, childNode := range tree.child {
            printDirTree(childNode, prefix)
        }
    }
}
 
func main() {
    dirName := "D:/go/src/jet"
    tree, err := getDirTree(dirName)
    if err != nil {
        log.Fatalln("read dir '%s' fail: %v", dirName, err)
    }
    printDirTree(tree, "")
}

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