第4周项目3（2）小学生算数能力测试


Copyright (c) 2016,

All rights reserced.

文件名称：main.cpp
作者：李鑫

完成日期：2016.3.23
问题描述：每道题随机产生，练习者根据显示题目输入自己的答案，程序判断答案是否正确并显示出相应信息。最后显示做对了几道题

#include<iostream>
#include<ctime>
#include<cstdlib>
using namespace std;

int main()
{
int x,y,z,n,w,i,m;
n=0;
i=1;

for(i=1;i<=10;i++)
{
cout<<"第"<<i<<"道题:"<<endl;
srand(time(0));
x=rand()%100;
y=rand()%100;
z=rand()%4;
switch(z)
{

case 0: w=x+y; cout<<x<<"+"<<y<<"="; break;
case 1: w=x-y; cout<<x<<"-"<<y<<"="; break;
case 3: w=x*y; cout<<x<<"*"<<y<<"="; break;
default : cout<<x<<"/"<<y<<"="; w=x/y;
}

cin>>m;
if(m==w)
{
cout<<"right!"<<endl;
n++;
}
else
cout<<"wrong!"<<endl;

}

cout <<"您总共答对"<<n<<"道题，得"<<n*10<<"分。"<< endl;
return 0;
}