【 tulaoshi.com - 编程语言 】
                             
                            代码如下:
public static void main(String[] args) {
         File f = new File("D:testfsd");
         listChids(f,0);
     }
     public static void listChids(File f,int level){
         String preSrt = "";
         for(int i=0;ilevel;i++){
             preSrt += "----";
         }
         System.out.println(preSrt+f.getName());
         if(!f.isDirectory()){
             return ;
         }else{
             File[] fs = f.listFiles();
             for(int i=0;ifs.length;i++){
                 listChids(fs[i], level+1);
             }
         }
     }