import java.util.Random;
import java.util.Scanner;
class SiZeYunSuan
{
public static void YunSuanFu(){
Scanner scan=new Scanner(System.in);
System.out.print("请输入要做的题数:");
int TiShu=scan.nextInt();
int sco=100/TiShu;
int score=0;
for (int j = 1; j <=TiShu ; j++) {
Random r=new Random();
int a=r.nextInt(100);
//System.out.println(a);
int b = r.nextInt(100);
//System.out.println(b);
int i=r.nextInt(4);
//System.out.println(i);
char s;
int[] arr=new int[]{'+','-','*','/'};
s=(char)arr;
System.out.println("请计算第"+j+"道题数");
System.out.println("请计算:"+a+" "+s+" "+b+"=");
int sum1=scan.nextInt();
int sum=0;
switch(i){
case 0:sum=a+b;break;
case 1:sum=a-b;break;
case 2:sum=a*b;break;
case 3:sum=a/b;break;
}
//System.out.println(s);
//System.out.println(sum);
if (sum==sum1) {
score+=100/TiShu;