devc++简易计算器代码

Dev-C++是一个免费的、开源的集成开发环境，支持C/C++编程语言。下面是一个简单的计算器代码示例：

#include <iostream>
using namespace std;

int main()
{
    char op;
    double num1, num2;

    cout << "请输入操作符(+、-、*、/)：";
    cin >> op;

    cout << "请输入两个数字：" << endl;
    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 << num1 << "/" << num2 << "=" << num1/num2;
            else
                cout << "除数不能为0！";
            break;

        default:
            cout << "无效的操作符！";
            break;
    }

    return 0;
}