桌面计算器代码实现c++
时间: 2023-08-03 19:25:50 浏览: 62
以下是简单的桌面计算器的代码实现(C++):
```c++
#include<iostream>
using namespace std;
int main() {
char op; //运算符
double num1, num2; //操作数
cout << "请输入运算符(+,-,*,/): ";
cin >> op;
cout << "请输入两个操作数: ";
cin >> num1 >> num2;
switch (op) {
case '+':
cout << num1 << " + " << num2 << " = " << num1 + num2;
break;
case '-':
cout << num1 << " - " << num2 << " = " << num1 - num2;
break;
case '*':
cout << num1 << " * " << num2 << " = " << num1 * num2;
break;
case '/':
if (num2 == 0) {
cout << "错误:除数不能为0";
}
else {
cout << num1 << " / " << num2 << " = " << num1 / num2;
}
break;
default:
cout << "错误:无效的运算符";
break;
}
return 0;
}
```
该程序要求用户输入一个运算符和两个操作数,然后根据运算符进行相应的计算并输出结果。如果用户输入的是除法运算符(/)且除数为0,则会输出错误信息。