qingjuanlucky的专栏

package com.zqj; import java.io.FileOutputStream; public class outputToTxe { public static void main(String[] args) { try { FileOutputStream fos = new

public static void main(String[] args)throws IOException { String path = "d:/data.txt"; File file = new File(path); BufferedReader in=new BufferedReader(new F

读d盘下的文件 1.       输出文件数 2.      列出文件名     public static void main(String[] args) { String path = "d:"; File file = new File(path); File f[] =file.listFile