1 package cn.xiaocangtian.testFile; 2  3 import java.io.File; 4  5 public class FileTree { 6     public static void main(String[] args) { 7         File f = new File("E:/Java_All_Code/TestFile/src/cn/xiaocangtian/testFile"); 8         printFile(f, 0); 9     }10 11     static void printFile(File file, int level) {12         // TODO Auto-generated method stub13         for (int i = 0; i < level; i++) {14             System.out.print("-");15         }16         System.out.println(file.getName());17         18         //如果是目录19         if (file.isDirectory()) {20             File[] files = file.listFiles();21             //遍历目录下的全部文件22             for (File temp : files) {23                 printFile(temp, level + 1);24             }25                 26         }27     }28     29 }