calculate.cpp

在visual C++控制台应用程序编写的小学生四则运算系统

#include<iostream>
using namespace std;
int random(int);
void calculate(int select)
{
	int t,response, num1,num2,op,total,count;
	total=0;
	for(count=1;count<=10;count++)
	{
		op=rand();
		if(select==0)
			op=op%2;
		else
			op=op%4;
		num1=random(select);
		num2=random(select);
		switch(op)
		{
		case 0:
			cout<<num1<<"+"<<num2<<"=";
			cin>>response;
			if((num1+num2)==response)
				total+=10;
			break;
		case 1:
			if(num1<num2)
			{
				t=num1;
				num1=num2;
				num2=t;
			}
			cout<<num1<<"-"<<num2<<"=";
			cin>>response;
			if((num1-num2)==response)
				total+=10;
			break;
		case 2:
			cout<<num1<<"*"<<num2<<"=";
			cin>>response;
			if((num1*num2)==response)
				total+=10;
			break;
		case 3:
			if(num2==0) num2=1;
			while(num1%num2!=0)
			{
				num1=random(select);
				num2=random(select);
				if(num2==0)num2=1;
			}
			cout<<num1<<"/"<<num2<<"=";
			cin>>response;
			if((num1/num2)==response)
				total+=10;
			break;
		default:break;
		}
		
	}
        cout<<"总成绩："<<total<<endl;
		system("pause");
		system("cls");

}