download：前端支流布局零碎进阶与实战,一课搞定4大支流布局，轻松实现各种精美页面

上面的都不重要
//四则运算

include "stdafx.h"

include

include<stdio.h>

using namespace std;
void add()
{

printf("输出要计算的加数（例如a b）\n");int adda=0, addb=0,addc=0;cin >> adda;cin >> addb;addc = adda+addb;cout <<adda<<"加"<<addb<< "等于" << addc << endl; 

}
void substraction()
{

printf("输出要计算的减数（例如a b）\n");int suba = 0, subb = 0, subc = 0;cin >> suba;cin >> subb;subc = suba-subb;cout <<suba<<"减"<<subb<< "等于" << subc << endl;

}
void multiplication()
{

printf("输出要计算的乘数（例如a b）\n");int mula = 0, mulb = 0, mulc = 0;cin >> mula;cin >> mulb;mulc = mula*mulb;cout <<mula<<"乘"<<mulb<< "等于" << mulc << endl;

}
void division()
{

printf("输出要计算的除数（例如a b）\n");int dsa = 0, dsb = 0, dsc = 0,dsd=0;cin >> dsa;cin >> dsb;dsc = dsa/dsb;dsd = dsa%dsb;cout <<dsa<<"除"<<dsb<< "等于" << dsc <<"余"<<dsd<<endl;

}
void operation()//运算函数
{

printf("输出数据抉择做那种运算\n");printf("输出0抉择退出，1做加法，2做减法，3做乘法，4做除法（保留余数）\n"); int operatione = 0;cin >> operatione;cout << endl;try{    if (operatione == 1)    {        //加法        add();    }    else if (operatione == 2)    {        //减法        substraction();    }    else if (operatione == 3)    {        //乘法        multiplication();    }    else if (operatione == 4)    {        //出发        division();    }    else if (operatione == 0)    {        exit(0);    }    else    {        throw 1;    }}catch (int i){    cout << "输出谬误" << endl;}operation();

}
int main()
{

printf("欢迎使用本计算器");operation();return 0;

}