带有菜单的输入验证c++

#include <iostream>

int main() {
    int choice;
    
    do {
        // 显示菜单
        std::cout << "Menu:" << std::endl;
        std::cout << "1. Option 1" << std::endl;
        std::cout << "2. Option 2" << std::endl;
        std::cout << "3. Quit" << std::endl;
        
        // 获取用户输入
        std::cout << "Enter your choice: ";
        std::cin >> choice;
        
        // 验证用户输入
        if (std::cin.fail()) {
            std::cout << "Invalid input. Please try again." << std::endl;
            std::cin.clear();
            std::cin.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
            continue;
        }
        
        // 执行相应操作
        switch (choice) {
            case 1:
                std::cout << "Option 1 selected." << std::endl;
                // 执行 Option 1 的操作
                break;
            case 2:
                std::cout << "Option 2 selected." << std::endl;
                // 执行 Option 2 的操作
                break;
            case 3:
                std::cout << "Exiting..." << std::endl;
                break;
            default:
                std::cout << "Invalid choice. Please try again." << std::endl;
                break;
        }
        
    } while (choice != 3);
    
    return 0;
}