zhang1996922的博客

package filetext;import java.io.File; import java.io.IOException;public class FileUtil { //遍历输出文件名 public static void listdicton(File dir)throws IOException{ if(!(dir.exists())){ throw new

1.用for循环2.用迭代器遍历import java.util.ArrayList;import java.util.Iterator;import java.util.List;public class FormatText { public static void main(String[] args) {// Eampolayment sEampolayment=new Eampolay...