参考程序代码：

#include <iostream>
using namespace std;

double divide(double a, double b) {
    if (b == 0) {
        throw "Division by zero error";  // 抛出异常
    }
    return a / b;
}

int main() {
    double num1, num2;
    cout << "Enter two numbers: ";
    cin >> num1 >> num2;

    try {
        double result = divide(num1, num2);
        cout << "Result: " << result << endl;
    } catch (const char* e) {  // 捕获字符串类型的异常
        cout << "Error: " << e << endl;
    }

    return 0;
}