#include<iostream>

using namespace std;

void main()

{

cout << "主人，我是一个简易计算器，我可以帮你计算问题，但是不要太复杂" << endl;

cout << "请输入问题" << endl;

getchar();

double x, y;

char ch;

cin >> x >> ch >> y;

int i_x = x;

int i_y = y;

switch (ch)

{

case '+':

cout << x + y << endl;

system("pause");

break;

case '-':

cout << x - y << endl;

system("pause");

break;

case '*':

cout << x * y << endl;

system("pause");

break;

case '/':

cout << x / y << endl;

system("pause");;

break;

case '%':

cout << i_x % i_y << endl;

system("pause");;

break;

default:

cout << "我不会了" << endl;

system("pause");

break;

}

}