"""
购物车
注意:
1.商品添加到购物车后,商店对应商品数量应该相应减少
2.当购物车清空后,已加入购物车的商品应该回到商店
3.支付后,购物车清空,商店对应商品减少相应数量
"""
class DictCommodityInfo:
"""
商品类
"""
def __init__(self, key, name, price, count):
self.__key = key
self.__name = name
self.__price = price
self.__count = count
def get_key(self):
return self.__name
def get_name(self):
return self.__name
def get_price(self):
return self.__price
def get_count(self):
return self.__count
class Account:
def __init__(self, money=0):
self.__money = money
def get_money(self):
return self.__money
def charge(self, money):
self.__money += money
def pay_money(self, money):
self.__money -= money
class DictCommodityInfoManagerController:
def __init__(self, dict, dict_shopping_cart={}):
self.__dict = dict
self.__account = Account()
self.__dict_shopping_cart = dict_shopping_cart
def get_dict(self):
"""
获取商品列表
:return:
"""
return self.__dict
def get_dict_shopping_cart(self):
"""
获取购物车列表
:return:
"""
return self.__dict_shopping_cart
def __add(self, key, name, price, count):
"""
添加商品
:param key:
:param name:
:param price:
:param count:
:return:
"""
count_dict = self.__dict[key]["count"]
self.__dict[key] = {"name": name, "price": price, "count": count_dict + count}
def remove(self, cid, count):
"""
删除商品
:param cid:
:param count:
:return:
"""
self.__dict[cid]["count"] -= count
def __print_commodity(self):
"""
打印商品信息
:return:
"""
for key, value in self.__dict.items():
print("编号：%d 名称：%s 单价：%d 数量:%d" % (key, value["name"], value["price"], value["count"]))
def print_dict_shopping_cart(self):
"""
打印购物车信息
:return:
"""
if not self.__dict_shopping_cart.__len__():
print("购物车什么也没有")
else:
for key, value in self.__dict_shopping_cart.items():
print("编号：%d 名称：%s 数量:%d" % (key, value["name"], value["count"]))
def print_account_money(self):
"""
显示账户余额
:return:
"""
money = self.__account.get_money()
print("账户余额: %d元" % (money))
if money < 1000:
print("你个穷逼")
elif money >= 50000:
print("土豪我们做朋友吧")
else:
print("钱不多啦,充钱使人快乐")
def clear_shopping_cart(self):
"""
清空购物车
:return:
"""
if not self.__dict_shopping_cart.__len__():
return False
for key, value in self.__dict_shopping_cart.items():
self.__add(key, value["name"], value["price"], value["count"])
self.__dict_shopping_cart.clear()
return True
def __create_order(self):
"""
生成订单
:return:
"""
while True:
cid = int(input("请输入商品编号:"))
if cid in self.__dict:
break
else:
print("该商品不存在")
return False
count = int(input("请输入购买数量:"))
if count > self.__dict[cid]["count"]:
print("商品数量不足,请重新购买")
return False
if count <= 0:
print("请输入合法数量")
return False
self.remove(cid, count)
return {"cid": cid, "name": self.__dict[cid]["name"], "price": self.__dict[cid]["price"], "count": count}
def __calculate_paid_money(self):
money = 0
for key, value in self.__dict_shopping_cart.items():
money += value["price"] * value["count"]
return money
# def __update_commodity_info(self):
def buy(self):
"""
购买
:return:
"""
self.__print_commodity()
dict_order = self.__create_order()
if not dict_order:
return False
# 添加商品到购物车时,商品数量及购物车数量会发生变化
count = 0
if self.__dict_shopping_cart.__len__():
count = self.__dict_shopping_cart[dict_order["cid"]]["count"]
self.__dict_shopping_cart[dict_order["cid"]] = {"name": dict_order["name"], "price": dict_order["price"],
"count": count + dict_order["count"]}
return True
def pay(self):
"""
结算
:return:
"""
money = self.__calculate_paid_money()
if self.__account.get_money() < self.__calculate_paid_money():
print("您的余额不足,请充值")
return False
else:
self.__account.pay_money(money)
# self.__dict[]
self.__dict_shopping_cart.clear()
return True
def charge(self):
"""
充值
:return:
"""
while True:
money = int(input("请输入你要充值的金额:"))
self.__account.charge(money)
print("充值成功\n1: 是否继续充值 0:退出")
is_pay = input("")
if is_pay == '1':
money = int(input("请输入你要充值的金额:"))
self.__account.charge(money)
elif is_pay == '0':
break
else:
print("您的选择有误")
class CommodityInManagerView:
def __init__(self, commodity_control):
self.__commodity_control = commodity_control
def __display_menu(self):
print("(1) 购买")
print("(2) 结算")
print("(3) 查看购物车")
print("(4) 清空购物车")
print("(5) 查看账户余额")
print("(6) 充值")
def __select_menu_item(self):
number = input("请输入选项:")
if number == '1':
if self.__commodity_control.buy():
print("商品已成功添加到购物车")
else:
print("添加购物车失败")
elif number == '2':
if self.__commodity_control.pay():
print("支付成功")
else:
print("支付失败")
elif number == '3':
self.__commodity_control.print_dict_shopping_cart()
elif number == '4':
if self.__commodity_control.clear_shopping_cart():
print("购物车清空啦")
else:
print("您的购物车什么都没有哦")
elif number == "5":
self.__commodity_control.print_account_money()
elif number == "6":
self.__commodity_control.charge()
else:
print("输入数字有误,请重新输入:")
def main(self):
"""
入口逻辑
:return:
"""
while True:
self.__display_menu()
if not self.__select_menu_item():
continue
dict_commodity_info = {
101: {"name": "屠龙刀", "price": 10000, "count": 100},
102: {"name": "倚天剑", "price": 10000, "count": 1},
103: {"name": "九阴白骨爪", "price": 8000, "count": 0},
104: {"name": "九阳神功", "price": 9000, "count": 9},
105: {"name": "降龙十八掌", "price": 8000, "count": 3},
106: {"name": "乾坤大挪移", "price": 10000, "count": 1}
}
dict_manager_controller = DictCommodityInfoManagerController(dict_commodity_info)
view = CommodityInManagerView(dict_manager_controller)
view.main()
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