第四周项目3①-小学生算术能力测试系统


/*

*Copyright (c) 2015,烟台大学计算机学院

*All rights reserved.

*文件名称：text.cpp

*作者：陈腾

*完成日期：2015年3月24日

*版本号：v1.0

*

*问题描述：设计小学生的加减乘除的十道题随机产生

*输入描述：输入十个整数

*程序输出：输出结果是否正确及正确个数

*/ 

#include <iostream> 

#include<ctime> 

#include<cstdlib> 

using namespace std; 

int main() 

{ 

    int i,right=0,sum,amount=1,m; 

    int x,y; 

    for(i=0;i<10;i++) 

    { 

       x=rand()%100; 

       y=rand()%100+1; 

       if(x<y) 

       { 

           m=x; 

           x=y; 

           y=m; 

       } 

        cout<<"第"<<amount<<"题："; 

        srand(time(0)); 

        switch(x%4) 

        { 

            case 0: 

                { 

                    cout<<x<<"+"<<y<<"="; 

                    cin>>sum; 

                    if(sum==(x+y)) 

                    { 

                        cout<<"right"<<endl; 

                        right++; 

                    } 

 

                    else cout<<"wrong"<<endl; 

                    break; 

                } 

            case 1: 

                { 

                    co
4000
ut<<x<<"-"<<y<<"="; 

                    cin>>sum; 

                    if(sum==(x-y)) 

                    { 

                         cout<<"right"<<endl; 

                         right++; 

                    } 

 

                    else cout<<"wrong"<<endl; 

                    break; 

                } 

            case 2: 

            { 

                    cout<<x<<"*"<<y<<"="; 

                    cin>>sum; 

                    if(sum==(x*y)) 

                    { 

                        cout<<"right"<<endl; 

                        right++; 

                    } 

 

                    else cout<<"wrong"<<endl; 

                    break; 

                } 

            case 3: 

                { 

                    x=(y)*(rand()%10); 

                    cout<<x<<"/"<<y<<"="; 

 

                    cin>>sum; 

 

                    if(sum==(x/y)) 

                    { 

                        cout<<"right"<<endl; 

                        right++; 

                    } 

 

                    else cout<<"wrong"<<endl; 

                    break; 

                } 

        } 

        amount++; 

 

    } 

    cout<<"做对了："<<right<<"道题，得分为："<<right*10; 

    return 0; 

}