python 购物流程脚本

2023-10-30 04:12| 来源: 网络整理| 查看: 265

一、Python购物流程脚本

半个多月的python学习，花了一天的时间终于写出来了一个简单的购物流程脚本，也算是对Python的一次总结和知识的温习，本人很菜，脚本也非常非常一般。希望在前辈的基础上能更好的学习Python，希望与大家交流。联系方式博客见

此脚本能够实现的实现的功能： 1、通过用户名和密码认证才能登陆购物系统，否者拒绝。 2、认证通过后，用户需要输入工资后会打印一个购物列表，列表中有可以购买的物品。 3、用户可以用自已的工资买购物列表中的物品，前提是自已的工资承受的起，如果承受不起，退出。 4、购买的物品可以加入购物车，也可以从购物车删除。 5、确定购买物品结束后，就可以结算购买物品的总消费金额，然后退出整个系统此脚本用到python的知识点： 1、流程控制：if | for | while True 2、文件的读取 3、列表的增加和删除 4、模块 5、切片 6、索引 ......#!/usr/bin/env python # Descript message # Author:Allentuns # MailBox:[email protected] # Tel:13260071987 import startup import sys userfile = open("user.txt","r") rss = userfile.readlines() listpass = [] for line in rss: line1 = line.split()[0] listpass.append(line1) username1 = listpass[0::2] password1 = listpass[1::2] while True: user = raw_input("please input your username:") user_num = username1.index(user) user_pas = password1[user_num] if len(user) == 0: print "empty user,try again." continue elif user in username1: break elif user == "q" or user == "quit" or user == "exit": print "Welcome to come again next time" sys.exit() else: print "%s is not exists,please try again input your name" %(user) continue while True: passwdd = raw_input("please your password:") if len(passwdd) == 0: print "Sorry , input your password error , please try again." #elif passwdd in password1: elif passwdd == user_pas: print "\n" + "Welcome to %s login shoppings:" %(user) break else: print "password is Error,please try again." while True: try: salary = int(raw_input("please input your salary:")) break except ValueError: print "please input a number,not string." file = open('shoplist.txt','r') for fr in file: fr = fr.rstrip() print fr file.close() print """Options and arguments: input "D" : Delete from shoplist into del input "F" : Return to the total pages input "T" : Total shoplist""" products = [] prices = [] file2 = open('shoplist.txt') fr2 = file2.readlines() for line in fr2: p1 = line.split()[0] p2 = int(line.split()[1]) products.append(p1) prices.append(p2) prices = prices list00 = [] while True: choose = raw_input("please choose your buy things:") if choose in products: product_num = products.index(choose) product_price = prices[product_num] if salary > product_price: print "%s $%d" %(choose,product_price) list00.append(choose) print "Add %s into your shoplist" %(choose) print "You choose to purchase the commodity list:",list00 salary = salary - product_price else: if salary

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