文件地址

import java.io.*;public class FileList {public static void main(String[] args) {File f = new File("d:/A");System.out.println(f.getName());tree(f, 1);}private static void tree(File f, int level) {String preStr = "";for(int i=0; i<level; i++) {preStr += "    ";}File[] childs = f.listFiles();for(int i=0; i<childs.length; i++) {System.out.println(preStr + childs[i].getName());if(childs[i].isDirectory()) {tree(childs[i], level + 1);}}}}