帮小学生练习乘法

//No.6-test-6.56
//帮小学生练习乘法 
#include<iostream>
#include<cstdlib>
#include <Windows.h>
using namespace std;

//显示题目 
int showTitle();

int main()
{
    while(1)
    {
        int stdAnswer=showTitle();          
        while(1)
        {
            cout<<"你的答案：";
            int userAnser;
            cin>>userAnser;

            if(userAnser==stdAnswer) 
            {
                cout<<"非常好"<<endl<<endl;
                Sleep(1000);
                system("cls");
                break;
            }else
            {
                cout<<"不对，再输一次"<<endl<<endl;
            }   
        } 
    }

    return 0; 
}

int showTitle()
{       
    int num1=0+rand()%9;
    int num2=0+rand()%9;
    int answer=num1*num2;//正确答案 
    cout<<num1<<"*"<<num2<<"="<<endl;

    return answer;                          
} 

效果如下