Python实现购物车程序


            本文实例为大家分享了程序：Python购物车程序，具体内容如下



需求：



  启动程序后，让用户输入工资，然后打印商品列表

  允许用户根据商品编号购买商品

  用户选择商品后，检测余额是否够，够就直接扣款，不够就提醒

  可随时退出，退出时，打印已购买商品和余额

  如余额不足，可充值 



代码：







#coding=utf-8

#Version:python 3.6.0

#Tools:Pycharm 2017.3.2

_date_ = '2018/4/16/016 14:50'

_author_ = 'Hongyong'



salary = int(input("Please input your salary: "))

shoppingmart = []

items = (["1","Huawei","￥",2800],

     ["2","Earphone","￥",300],

     ["3","Book","￥",80])

msg_items = '''

----------items----------

1. Huawei   ￥ 2800

2. Earphone  ￥ 300

3. Book    ￥ 80

-------------------------

'''

print(msg_items)

while True:

  shopindex = int(input("Please choose goods: "))

  if salary > items[shopindex-1][3]:

    shoppingmart.append(items[shopindex-1])

    salary -= int(items[shopindex-1][3])

    print("You have bought {name} !".format(name = items[shopindex-1][1]))

    print("Your balance is: ￥",salary)

    decision = input("Do you want to quit now?")

    print(msg_items)

  else:

    print("Your balance is not enough! Please try sth else.")

    recharge_ans = input("Do you want to recharge?")

    if recharge_ans == "y":

      recharge = int(input("Please input money: "))

      print("Please wait for a while...")

      salary += recharge

      print("You have recharged successfully!")

      print("And the balance is: ",salary,"now!")

    decision = input("Do you want to quit now?")

    print(msg_items)

  if decision == "q":

    break

  else:

    continue

print("You have bought: ",shoppingmart)

print("Your balance is: ￥",salary)

print("Welcome your next coming!") 





程序效果：





Please input your salary: 0

 

----------items----------

1. Huawei   ￥ 2800

2. Earphone  ￥ 300

3. Book    ￥ 80

-------------------------

 

Please choose goods: 1

Your balance is not enough! Please try sth else.

Do you want to recharge?y

Please input money: 30000

Please wait for a while...

You have recharged successfully!

And the balance is: 30000 now!

Do you want to quit now?

 

----------items----------

1. Huawei   ￥ 2800

2. Earphone  ￥ 300

3. Book    ￥ 80

-------------------------

 

Please choose goods: 1

You have bought Huawei !

Your balance is: ￥ 27200

Do you want to quit now?

 

----------items----------

1. Huawei   ￥ 2800

2. Earphone  ￥ 300

3. Book    ￥ 80

-------------------------

 

Please choose goods: 2

You have bought Earphone !

Your balance is: ￥ 26900

Do you want to quit now?q

 

----------items----------

1. Huawei   ￥ 2800

2. Earphone  ￥ 300

3. Book    ￥ 80

-------------------------

 

You have bought: [['1', 'Huawei', '￥', 2800], ['2', 'Earphone', '￥', 300]]

Your balance is: ￥ 26900

Welcome your next coming!





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