Java基础_查询文件的目录结构

import java.io.File;

public class SelFileDirectory {

public static void main(String[] args) {

File file = new File("c:/A");

System.out.println(file.getName());

listFiles(file, 1);

}

static void listFiles(File f, int level) {

File[] files = f.listFiles();

String preStr = "";

for(int i=0; i<level; i++) {

preStr += " ";

}

long n = files.length;

for(int i=0; i<n; i++) {

System.out.println(preStr + files[i].getName());

if(files[i].isDirectory()) {

listFiles(files[i], level+1);

}

}

}

}

A

B

E

H

i.txt

f.txt

g.txt

C

d.txt