代码:
package com.itranswarp.learnjava; import java.io.File; import java.io.IOException; /** * Learn Java from https://www.liaoxuefeng.com/ * * @author liaoxuefeng */ public class Main { public static void main(String[] args) throws IOException { File currentDir = new File("."); System.out.println(currentDir.getAbsolutePath()); listDir(currentDir.getCanonicalFile(),0); } static void listDir(File dir,int level) { // TODO: 递归打印所有文件和子文件夹的内容 File[] fs = dir.listFiles(); if (fs != null) { for (File f : fs) { //根据当前目录的层级打印空格 for(int i=0;i<level;i++ ) { System.out.print(" "); } //如果是目录,继续递归 if(f.isDirectory()) { System.out.println(f.getName()); try { listDir(f.getCanonicalFile(),level+1); } catch (IOException e) { // TODO Auto-generated catch block e.printStackTrace(); } //否则直接输出文件名 }else { System.out.println(f.getName()); } } } } }
结果:
F:\eclipse-java\workspace\io-file\. .classpath .project bin com itranswarp learnjava Main.class src com itranswarp learnjava Main.java
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喵了个咪的904
代码:
结果: