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menus = [
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{"m_name": "鱼香肉丝", "m_money": 33, "m_goods": 0, "m_number": 10},
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{"m_name": "麻婆豆腐", "m_money": 11, "m_goods": 0, "m_number": 10},
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{"m_name": "水煮肉片", "m_money": 66, "m_goods": 0, "m_number": 10},
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]
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menus_car =[]
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orders =[]
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# 2.点击我要点菜，显示所有菜品信息及编号。
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while True:
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print("----------点餐系统----------")
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print("1.我要点餐")
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print("2.我要结账")
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print("3.我要点赞")
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print("4.退出系统")
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print("请选择编号：",end="")
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num1 = int(input())
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if num1 ==1:
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while True:
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menu_no = 1
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print(" ")
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print("----------点餐界面----------")
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print("菜单编号\t\t菜单名称\t\t单价\t\t点赞数\t\t剩余库存")
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for menu in menus:
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print("{0}\t\t{1}\t\t{2}\t\t{3}\t\t{4}\t\t".format(
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menu_no,
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menu.get("m_name"),
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menu.get("m_money"),
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menu.get("m_goods"),
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menu.get("m_number")
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))
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menu_no += 1
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# 3.用户选择编号，将菜品添加到购物车，并扣除菜品信息中的分数。
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print("请选择菜品编号(0返回首页)： ",end="")
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user_menu_no = int(input()) #用户输入菜品编号
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if user_menu_no==0:
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break
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print("请输入购买份数：", end="")
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user_menu_number = int(input())
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# 计算菜品总价
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user_menu_money = menus[user_menu_no-1].get("m_money") * user_menu_number
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#1.获得菜品信息
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new_menus = menus[user_menu_no - 1] #将点菜信息赋值给新的变量
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new_menus.update({"user_menu_number":user_menu_number})
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new_menus.update({"user_menu_money":user_menu_money})
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#2.放入购物车
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menus_car.append(new_menus)
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elif num1 ==2:
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print(" ")
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print("----------结账界面----------")
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print("菜单名称\t\t单价\t\t份数\t\t总价")
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goodsum = 0;
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for menucar in menus_car:
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goodsum += menucar.get("user_menu_money")
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print("{0}\t\t{1}\t\t{2}\t\t{3}".format(
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menucar.get("m_name"),
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|
menucar.get("m_money"),
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menucar.get("user_menu_number"),
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menucar.get("user_menu_money")
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))
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print("购物车合计：",goodsum)
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|
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|
|
while True:
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|
print("请输入金额：",end="")
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|
user_money = float(input())
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|
|
if goodsum > user_money:
|
|
|
print("余额不足，请重新输入。")
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|
else:
|
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|
print("实付%f，找零%f"%(user_money,(user_money-goodsum)))
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|
#减库存
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|
|
for menucar1 in menus_car: #循环购物车中的菜品
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|
for menu2 in menus: #循环菜单中的菜品
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|
#获得购物车菜品名称 并 比较菜单中的菜品名称 查找是否存在
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|
|
if menucar1.get("m_name") == menu2.get("m_name"):
|
|
|
#更新当前菜品信息中的 库存量 当前库存-购买份数
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|
|
menu2.update({"m_number":menu2.get("m_number")-menucar1.get("user_menu_number")})
|
|
|
|
|
|
orders = menus_car.copy()
|
|
|
menus_car.clear()
|
|
|
break
|
|
|
|
|
|
|
|
|
elif num1 ==3:
|
|
|
while True:
|
|
|
print(" ")
|
|
|
print("----------点赞界面----------")
|
|
|
print("菜单名称\t\t单价\t\t份数\t\t总价\t\t点赞数")
|
|
|
|
|
|
for order in orders:
|
|
|
print("{0}\t\t{1}\t\t{2}\t\t{3}\t\t{4}".format(
|
|
|
|
|
|
order.get("m_name"),
|
|
|
order.get("m_money"),
|
|
|
order.get("user_menu_number"),
|
|
|
order.get("user_menu_money"),
|
|
|
order.get("m_goods"),
|
|
|
))
|
|
|
|
|
|
m_goods_numbers = int(input("请输入点赞数(按0退出)："))
|
|
|
for goods_numbers in orders: # 循环订单中的菜名
|
|
|
for goods_numbers_1 in menus: # 循环菜单中的菜名
|
|
|
if goods_numbers.get("m_name") == goods_numbers_1.get("m_name"):
|
|
|
goods_numbers_1.update({"m_goods": goods_numbers_1.get("m_goods")+ m_goods_numbers})
|
|
|
if m_goods_numbers == 0:
|
|
|
break
|
|
|
|
|
|
elif num1 ==4:
|
|
|
print(" ")
|
|
|
print("----------退出系统----------")
|
|
|
break
|
