Java_File类讲解_打印目录树状结构_递归算法

package cn.xiaocangtian.testFile;

import java.io.File;

public class FileTree {
    public static void main(String[] args) {
        File f = new File("E:/Java_All_Code/TestFile/src/cn/xiaocangtian/testFile");
        printFile(f, 0);
    }

    static void printFile(File file, int level) {
        // TODO Auto-generated method stub
        for (int i = 0; i < level; i++) {
            System.out.print("-");
        }
        System.out.println(file.getName());
        
        //如果是目录
        if (file.isDirectory()) {
            File[] files = file.listFiles();
            //遍历目录下的全部文件
            for (File temp : files) {
                printFile(temp, level + 1);
            }
                
        }
    }
    
}