简单计算机怎么用C++写
时间: 2024-01-15 16:04:37 浏览: 29
以下是一个简单计算器的C++代码示例:
```C++
#include <iostream>
using namespace std;
int main() {
char op;
float num1, num2;
cout << "请输入运算符 (+, -, *, /): ";
cin >> op;
cout << "请输入两个数字: ";
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 '/':
cout << num1 << " / " << num2 << " = " << num1/num2;
break;
default:
cout << "错误! 请输入正确的运算符";
break;
}
return 0;
}
```
这个程序会要求用户输入运算符和两个数字,然后根据输入的运算符进行计算并输出结果。