shopping cart<代码>

 i = ["iphone 6000", "bicycle 1000", "coffee 50", "python book 100", "italy pizza 200", ]
 j = ["]      # 运用列表嵌套更容易实现
 in_list = []                                     # 已购买物品列表
 salary = int(input("你的工资："))
 while salary > 0:                                # 循环的开始以工资余额大于零开始
     # a = 0                                         # 循环打印利于管理员账户的管理
     # while a < 5:
     #     print("{xuhao}" .format(xuhao=a+1), i[a])   # 生硬的加个序号 下面注释的是更简单的方法
     #     a += 1
     for d, e in enumerate(i, 1):
         print(d, ">>>", e)
     w_i = input("你想要的物品序号或者退出q")
     if w_i.isdigit():                                  # 判断是否数字（输入的都是字符串）
         w_i = int(w_i)
         if 0 < w_i <= len(i):                           # len 计算长度
             if salary > int(j[w_i-1]):
                 salary -= int(j[w_i-1])                   # 余额变成工资 接着循环
                 in_list.append(i[w_i-1])                    # 加入购物车列表
                 print(i[w_i-1], "已加入你的购物车")
             else:
                 print("您的余额不足")
     elif w_i == "q":
         break
     elif w_i == "manager":
         print("0:增加商品 1：下架商品 2：修改价格 ")
         keyword = int(input("输入命令序号："))
         if keyword == 0:
             name_staff = str(input("输入商品名"))
             ordor_staff = int(input("输入商品序号"))
             price_staff = input("输入价格")
             name_staff = "  ".join([name_staff,price_staff])
             j.insert(ordor_staff-1, price_staff)
             i.insert(ordor_staff-1, name_staff)
         elif keyword == 1:
             ordor_staff = int(input("输入商品序号"))
             l = i.pop(ordor_staff - 1)
             print("已删除：", l)
         elif keyword == 2:
             ordor_staff = int(input("修改的序号"))
             gai_price = input("修改的价格")
             j[ordor_staff-1] = gai_price
             f = i[ordor_staff-1] # iho 6000
             u = j[ordor_staff - 1]  # u =1
             v = "".join([f,"降价为"])
             i[ordor_staff-1] = "  ".join([v,u])

         else:
             print("眼瞎呀")
     else:
         print("非法字符")
 print("您已经购买：")
 for b in in_list:
     print(b)
 print("您的余额为：", salary)

简易购物车系统