标签:random exti put har length [] ann input dex
public class MathP {
public static void main(String[] args) {
Scanner input=new Scanner(System.in);
int length = input.nextInt();
for(int k=0;k<length;k++) {
int i=(int)(1+Math.random()*(100-1+1));
int j=(int)(1+Math.random()*(100-1+1));
char[]ch ={‘+‘,‘-‘,‘*‘,‘/‘};
Random r =new Random();
int index = r.nextInt(ch.length);
System.out.print(i);
System.out.print(ch[index]);
System.out.print(j);
System.out.println(‘=‘);
}
标签:random exti put har length [] ann input dex
原文地址:http://www.cnblogs.com/zhangqianwen/p/6538071.html