在开关菜单上使用do-while循环

#include <iostream>

int main() {
    int choice;

    do {
        std::cout << "Menu:" << std::endl;
        std::cout << "1. Option 1" << std::endl;
        std::cout << "2. Option 2" << std::endl;
        std::cout << "3. Option 3" << std::endl;
        std::cout << "4. Exit" << std::endl;
        std::cout << "Enter your choice: ";
        std::cin >> choice;

        switch (choice) {
            case 1:
                // 执行选项1的操作
                std::cout << "Option 1 selected." << std::endl;
                break;
            case 2:
                // 执行选项2的操作
                std::cout << "Option 2 selected." << std::endl;
                break;
            case 3:
                // 执行选项3的操作
                std::cout << "Option 3 selected." << std::endl;
                break;
            case 4:
                // 退出循环
                std::cout << "Exiting..." << std::endl;
                break;
            default:
                // 处理无效选择
                std::cout << "Invalid choice. Please try again." << std::endl;
                break;
        }
    } while (choice != 4);

    return 0;
}