python『学习之路01』python 购物车精简版

#!/usr/bin/env python # -*- coding: utf-8 -*- # @Time : 2017/11/17 1:52 # @Author : mixiu26 # shopping.py public_list = [ ("iphone",5800), ("Mac Book",11800), ("Bike",1200), ("Wtach",10600), ("Coffee",31), ("Book",66) ] Shopping_list = [] Salary = input("Input your salary: ") if Salary.isdigit(): salary = int(Salary) while True: for item in public_list: print(public_list.index(item),item) # index --- >返回指定元素索引 user_choice = input("请选择您需要的商品 >>>>: ") if user_choice.isdigit(): choice = int(user_choice) if choice >=0 and choice < len(public_list): p_item = public_list[choice] if p_item[1] <= salary: Shopping_list.append(p_item) # 余额扣款: salary -= p_item[1] print("Add %s into shppoing cart, your current balance is \033[31;1m%s\033[0m" %(p_item,salary)) else: print("\033[41;1m你的余额仅剩[%s], 请充值: \033[0m" % salary) else: print("The Product code [%s] your Input is not exist! " % choice) elif user_choice == "q": print("===================== shopping list ========================") for i in Shopping_list: print(i) print("Your current balance: ",salary) exit() else: print("没有查到当前编号对应的商品信息, 请重新输入: ") else: print("没有查到当前编号对应的商品信息, 已退出")