购物车项目 复杂版本.待简化

# -*- coding: utf-8 -*-
# @Time    : 2018/12/23 13:46
# @Author  : Endless-cloud
# @Site    : 
# @File    : 重写购物车项目.py
# @Software: PyCharm
'''
0 首先声明在任何地方输入q 或者Q 退出系统
1 首先读取文件夹中的账号密码  Y 继续, N 继续输入账号密码
2 让用户判断查询消费记录 输入C 或者c ,  Y 2.1  ,N 3
    2.1  打印消费,余额
3 打印余额,让用户判断是否输入 金额 ,Y 继续  , N 继续
    3.1 余额充值  ,提示充值成功 ,继续4
4 打印系统商品列表
5 让用户输入 想要选择的商品编号 (扩展.商品名称)
6 打印用户购买的商品名字 ,以及账户余额
7 询问客户是否继续购买商品  Y  , N
    7.1  走流程4  ,5 , 6
    7.2 走流程 0
8 如果推出系统打印出客户已经购买的所有物品 , 以及余下金额
#  所有余额,商品内容用特殊字标注
'''
"""
准备 :
        描述             函数名称
1      存储基础属性       __init__    

        描述              名称           类型
1   已经购买的商品列表   shop_listshop    list
2   存储用户的账号密码   popmsg           dict                 
3   存储用户的余额      ymoney            str->int 
"""


class shop(object):
    def __init__(self):
        self.shop_listshop = []
        self.popmsg = {  # 待升级用读取txt
            'wzh': '123'
        }
        self.ymoney = ''
        self.goodgifts = [
            {"name": "电脑", "price": 1999},
            {"name": "鼠标", "price": 10},
            {"name": "游艇", "price": 20},
            {"name": "美女", "price": 998},
        ]
        self.msg =''

    # 如果用户输入q 那么 退出系统
    def close(self, char):
        if char.upper() == 'Q':
            self.save()
            quit()

    # 登录, 有3次判断机会,如果用完了退出系统
    def login(self):
        count = 3
        while 0 < count:

            username = input('请输入username')
            password = input('请输入password')
            with open('login.txt', 'r', encoding='utf-8') as f:
                l = f.readlines()  # readlines返回list
                neirong = eval(l[0])

                if neirong.get(username) == password:  # 利用字典的get()获取password判断
                    print('欢迎进入购物系统')
                    break

                elif neirong.get(username) != password:
                    count = count - 1
                    print('你还有%s次机会' % (count))
        else:
            print('机会用完')
            exit()

    # 打开money.txt ,读取第一行 ,利用readline() 获取内容(str). 在str 类型转换int类型,然后返回salay
    def money(self):
        with open('money.txt', 'r', encoding='utf-8') as f:
            salay = int(f.readline())
        return salay

    # 根据用户的金额进行判断充值,
    def money_chioce(self, salay):
        print('你当前的余额为' + str(salay) + '元')

        chongzhi = input('是否充值1键 ,或直接消费其他除q,c键 ,,输入q退出,c进入已经购买列表')
        if chongzhi == '1':
            jine = int(input('请输入充值金额'))
            if jine <= 0:
                endsalay = salay + int(jine)
                salay = salay + int(jine)
                print('最少充值1元')


            elif jine > 0:
                print('感谢你的充值')
                endsalay = salay + int(jine)
                with open('money.txt', 'w', encoding='utf-8') as f:
                    f.writelines(str(endsalay))
            print('你当前的余额为' + str(endsalay))
            self.close(chongzhi)
        elif chongzhi=='c':
            self.look_pay_list()
            print('当前余额为%s'%(self.money()))
        elif chongzhi=='q':
            self.close(chongzhi)

    # 让用户输入c ,打印出来列表中的商品
    def look_pay_list(self):
        with open('shaop.txt', 'r', encoding='utf-8') as f:
            print('%s   %s  %s' % ('编号', '名字', '数量'))
            ll = f.readlines()
            if len(ll)==0:
                print('当前没有任何内容')
            else:
                s = (eval([i for i in ll][0]) )
            # print(type(s))
            # print(type(eval([i for i in ll][0])[0]))

                for i, j in enumerate(s):
                    print(str(i) + '   ' + j['name'] + '  ' + str(j['number']))
            # print(type(j))


    #
    def goods(self):
        goods = self.goodgifts
        titie1 = '购物系统'
        print(titie1.center(50, '*'))
        print('%s   %s  %s' % ('编号', '名字', '金额'))
        for i, j in enumerate(goods):
            print('%s    %s    %s' % (i + 1, j['name'], j['price']))
    def txt_goods(self):
        with open('shaop.txt', 'r', encoding='utf-8') as f:
            self.msg=f.readlines()
            l =eval(self.msg[0])
            self.shop_listshop =l
            # print(type(self.shop_listshop[0]))
            # print(self.msg)
            # print(l)
            # print(type(l[0]))

    def chiose_goods(self):

        while True:
            chiose2 = input('请输入购买的商品编号')
            if chiose2 == 'q':
                self.close(chiose2)
            elif chiose2=='c':
                self.look_pay_list()
            elif int(chiose2) in [i + 1 for i, j in enumerate(self.goodgifts)]:
                print('你购买的物品是%s ,花了%s' % (self.goodgifts[int(chiose2) - 1]['name'], self.goodgifts[int(chiose2) - 1]['price']))
                goots_dic = [self.goodgifts[int(chiose2) - 1]][0]
                if self.goodgifts[int(chiose2) - 1]['name'] in [j['name'] for i, j in enumerate(self.shop_listshop)]:
                    self.shop_listshop[int(chiose2) - 1]['number'] = self.shop_listshop[int(chiose2) - 1]['number'] + 1
                    print('yes')
                else:

                    self.shop_listshop.append(goots_dic)
                    self.shop_listshop[int(chiose2) - 1]['number'] = 1
                    print('no')
            elif chiose2 not in [i + 1 for i, j in enumerate(self.goodgifts)]:
                print('没有这个商品编号')
            print(self.shop_listshop)

    def save(self):
        with open('shaop.txt', 'w', encoding='utf-8') as f:
            f.writelines(str(self.shop_listshop))
        self.look_pay_list()


shop = shop()

shop.login()

l = shop.money()
shop.money_chioce(l)
shop.goods()
shop.chiose_goods()

 

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