自动出题程序（10以内的数字的四则运算）

标签：c++   计算机   博客   编程   库   

代码如下：

#include <iostream>
#include <cstdlib>
#include <ctime>
using namespace std;
int main()
{
    int num1,num2,op,result1,result2;    //num1,num2:操作数;op：运算符;result1,result2:结果
    do
    {
    srand(time(NULL));
    num1=rand()*10/(RAND_MAX+1);
    num2=rand()*10/(RAND_MAX+1); //生成运算数
    op=rand()*4/(RAND_MAX+1);    //生成运算符 0-- +，1-- -，2-- *，3-- /

    switch (op)
    {
    case 0:
        cout<<num1<<"+"<<num2<<"=?  ";
        cin>>result1;
        if (num1+num2 == result1)
            cout<<"you are right"<<endl;
        else
            cout<<"you are wrong"<<endl;
        break;
    case 1:
        cout<<num1<<"-"<<num2<<"=?  ";
        cin>>result1;
        if (num1-num2 == result1)
            cout<<"you are right"<<endl;
        else
            cout<<"you are wrong"<<endl;
        break;
    case 2:
        cout<<num1<<"*"<<num2<<"=?  ";
        cin>>result1;
        if (num1*num2 == result1)
            cout<<"you are right"<<endl;
        else
            cout<<"you are wrong"<<endl;
        break;
    case 3:
        cout<<num1<<"/"<<num2<<"=?  ";
        cin>>result1;
        cout<<"余数为=?  ";
        cin>>result2;
        if ((num1/num2 == result1)&&(num1%num2==result2))
            cout<<"you are right"<<endl;
        else
            cout<<"you are wrong"<<endl;
        break;
    }
    }while(1);
    return 0;

}

自动出题程序（10以内的数字的四则运算）

标签：c++   计算机   博客   编程   库   

原文地址：http://blog.csdn.net/liuchang54/article/details/44015895