整理

15_test_practice/01_demo.py

+# 创建菜单字典
+menu = {
+    1: {
+        "汉堡类": ["香辣鸡腿堡", "劲脆鸡腿堡", "新奥尔良烤鸡腿堡"],
+    },
+    2: {
+        "小食类": ["薯条", "黄金鸡块", "香甜粟米棒"],
+    },
+    3: {
+        "饮料类": ["可口可乐", "九珍果汁", "经典咖啡"],
+    },
+}
+
+while True:
+    try:
+        user_input = int(input("请输入操作数字 (0: 退出, 1: 汉堡类, 2: 小食类, 3: 饮料类): "))
+        if user_input == 0:
+            print("感谢您的使用")
+            break
+        elif user_input in menu:
+            menu_type = menu[user_input]
+            for category, items in menu_type.items():
+                print(category)
+                for item in items:
+                    print(f"- {item}")
+        else:
+            print("无效的输入，请重新输入。")
+    except ValueError:
+        print("无效的输入，请重新输入。")

15_test_practice/01_demo2.py

+# 创建菜单字典
+menu = {
+    1: {
+        "汉堡类": ["香辣鸡腿堡", "劲脆鸡腿堡", "新奥尔良烤鸡腿堡"],
+    },
+    2: {
+        "小食类": ["薯条", "黄金鸡块", "香甜粟米棒"],
+    },
+    3: {
+        "饮料类": ["可口可乐", "九珍果汁", "经典咖啡"],
+    },
+}
+
+while True:
+    user_input = input("请输入操作数字或菜名 (0: 退出, 1: 汉堡类, 2: 小食类, 3: 饮料类): ")
+
+    if user_input == '0':
+        print("请输入操作数字")
+    else:
+        try:
+            user_input = int(user_input)
+            if user_input in menu:
+                menu_type = menu[user_input]
+                for category, items in menu_type.items():
+                    print(category)
+                    for item in items:
+                        print(f"- {item}")
+            else:
+                print("无效的输入，请重新输入。")
+        except ValueError:
+            found = False
+            for _, categories in menu.items():
+                for _, items in categories.items():
+                    if user_input in items:
+                        found = True
+                        break
+            if found:
+                print("感谢您的使用")
+            else:
+                print("无效的输入，请重新输入。")