在c++函数中计算斐波那契数并抛出编译时错误

#include <iostream>

int fibonacci(int n) {
    if (n <= 0) {
        throw std::invalid_argument("Invalid input. Fibonacci sequence starts from 1.");
    }
    if (n == 1 || n == 2) {
        return 1;
    }
    return fibonacci(n - 1) + fibonacci(n - 2);
}

int main() {
    try {
        int n = 10; // 你可以根据需要修改斐波那契数的计算位置
        int result = fibonacci(n);
        std::cout << "Fibonacci number at position " << n << " is: " << result << std::endl;
    } catch (const std::exception& e) {
        std::cout << "Error: " << e.what() << std::endl;
    }
    return 0;
}