c/c++实现简单计算器

c++实现简单的计算器（加减乘取余模除）

#include<iostream>#include<stdlib.h>using namespace std;int main(){double number1=0.0;double number2 =0.0;char operation =0;cout<<"请输入操作数："<<endl;cin>>number1>>operation>>number2;cout << number1 << operation << number2;    switch (operation){case '+':cout<<"="<<number1+number2<<endl;break;case '-':cout << "=" << number1 - number2 << endl;break;case '*':cout << "=" << number1 * number2 << endl;break;case '/':if ((long)number2 == 0){cout<<"除数为零"<<endl;}elsecout << "=" <<number1 / number2<<endl;break;case '%':if ((long)number2 == 0){cout << "除数为零" << endl;}elsecout << "=" << (long)number1 % (long)number2 << endl;break;default:cout<<"输入错误，请重新输入。"<<endl;break;}system("pause");return 0;