package com.qfedu.lian1;
import java.io.File;
public class Recursion{
public static void main(String[] args){
File file = new File ("D:/123");
listAllFile(file);
}
public static void listAllFile(File file){
System.out.println(file);
File [ ] files =file.listFile();
for( File f : files)
if(f.isDirectory())
System.out.println(f);
}
}