C++实现支持四则运算的简单计算器，处理除数为0和无效操作

```cpp #include <iostream> using namespace std; int main() { double num1, num2; char op; cin >> num1 >> num2 >> op; switch (op) { case '+': cout << num1 << op << num2 << "=" << num1 + num2 << endl; break; case '-': cout << num1 << op << num2 << "=" << num1 - num2 << endl; break; case '*': cout << num1 << op << num2 << "=" << num1 * num2 << endl; break; case '/': if (num2 != 0) { cout << num1 << op << num2 << "=" << num1 / num2 << endl; } else { cout << "0不能作为除数！" << endl; } break; default: cout << "无效的操作！" << endl; } return 0; } ``` ######[AI问答 | 241点数解答 | 2025-10-29 20:21:29]