使用c++设计简易计算器参考文献

好的，下面是一个简单的 C++ 计算器程序的参考代码：

#include <iostream>
using namespace std;

int main() {
    char op;
    double 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 '/':
            if (num2 == 0) {
                cout << "除数不能为0";
            } else {
                cout << num1 << " / " << num2 << " = " << num1 / num2;
            }
            break;

        default:
            cout << "不支持的运算符";
            break;
    }

    return 0;
}

参考文献：
- [C++ 简易计算器程序](https://www.runoob.com/w3cnote/cpp-simple-calculator.html)