菜单 = {
    "1. 菜品一": "描述菜品一",
    "2. 菜品二": "描述菜品二",
    "3. 菜品三": "描述菜品三",
    "4. 点餐完成": "感谢您的点餐，祝您用餐愉快！"
}

def show_menu():
    for key, value in 菜单.items():
        print(f"{key}. {value}")

show_menu()