XY_Noire的博客

import java.util.Random;import java.util.Scanner;public class YZM { public static void main(String[] args) { Random r=new Random(); Scanner sc=new Scanner(System.in); String str=""; int fl...

Connection conn = getCon(); //获取连接已经封装过的方法 try { conn.setAutoCommit(false); Long beginTime = System.currentTimeMillis(); ...