列出目录下对应的子目录及文件

//递归实现获取对应目录下的子目录及文件

 1 package com.lixl.test;

import java.io.*;

public class FileList {
    
    public static void main(String[] args){
        
        File f = new File("D:/eclipse");
        int level = 0;
        
        System.out.println(f.getName());
        level++;
        listFile(f,level);
    }
    
    private static void listFile(File f,int level){
        
        String preString = "";
        for(int i = 0;i < level ;i++){
            preString += "|____";
        }
        
        File[] childFile = f.listFiles();
        
        for(int i = 0;i < childFile.length;i++){
            System.out.println(preString + childFile[i].getName());
            if(childFile[i].isDirectory()){
                level++;
                listFile(childFile[i],level);
            }
        }
    }
}