python运维开发实践--Day2

Posted 2020-07-31

一、程序功能

购物功能

 -输入工资

 -列出购物菜单

 -选择购物项目

  -选择的购物项目，金额小于工资，扣钱，加入购物车

  -选择的购物项目，金额大于工资，给出提示，买金额小的项目

  -此时输入quit,退出购物，列出购物清单，退出

二、流程图如下

三、python代码

#!/usr/bin/env python

import sys

salary = int(raw_input(‘Please input your salary:‘))

products = [

  [‘Iphone‘,5800],

  [‘MacPro‘,12000],

  [‘NB Shoes‘,680],

  [‘Cigarate‘,48],

  [‘MX4‘,2500]

]

#create a shopping list

shopping_list = []

while True:

  for p in products:

    print products.index(p) ,p[0], p[1]

  choice = raw_input("\033[32;1mPlease choose sth to buy:\033[0m")

  if choice == ‘quit‘:

    print "You have bought below stuff:"

    for i in shopping_list:

      print ‘\t‘,i

    sys.exit(‘Goodbye!‘)

  if len(choice) == 0:continue

  if not choice.isdigit():continue

  choice = int(choice)

  if choice >= len(products):

    print ‘\033[31;1m Could not find this item\033[0m‘

    continue

  pro = products[choice]

  if salary >= pro[1]: #means you can afford this

    salary = salary - pro[1]

    shopping_list.append(pro)

    print "\033[34;1mAdding %s to shopping list, you have %s left\033[0m" % (pro[0], salary) 

  else:

    print ‘The price of %s is %s, yet your current balance is %s,so try another one!‘ %(pro[0],pro[1], salary)

四、运行演示

[[email protected] Day2]# python shopping.py 

Please input your salary:8000

0 Iphone 5800

1 MacPro 12000

2 NB Shoes 680

3 Cigarate 48

4 MX4 2500

Please choose sth to buy:0

Adding Iphone to shopping list, you have 2200 left

0 Iphone 5800

1 MacPro 12000

2 NB Shoes 680

3 Cigarate 48

4 MX4 2500

Please choose sth to buy:2

Adding NB Shoes to shopping list, you have 1520 left

0 Iphone 5800

1 MacPro 12000

2 NB Shoes 680

3 Cigarate 48

4 MX4 2500

Please choose sth to buy:2

Adding NB Shoes to shopping list, you have 840 left

0 Iphone 5800

1 MacPro 12000

2 NB Shoes 680

3 Cigarate 48

4 MX4 2500

Please choose sth to buy:3

Adding Cigarate to shopping list, you have 792 left

0 Iphone 5800

1 MacPro 12000

2 NB Shoes 680

3 Cigarate 48

4 MX4 2500

Please choose sth to buy:quit

You have bought below stuff:

        [‘Iphone‘, 5800]

        [‘NB Shoes‘, 680]

        [‘NB Shoes‘, 680]

        [‘Cigarate‘, 48]

Goodbye!

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