Python list Exercises

Python in Shopping cart practice

Requirements: You can enter a salary, select a commodity, and as long as the user has enough money to buy the goods, until the balance is insufficient, after the purchase is completed format the printing user's balance and merchandise.

#_ *_ coding:utf-8 _*_import sysshopping_car = []product_list_title =  ' Product list ' welcome =  ' welcome to the shopping ' product_list = [      (' iphone ', 3888),     (' ThinkPad ', 4888),     (' Coffee ', ,     (' Mac ', 6888)]print welcomesalary = input (' please input  Your salary: ') while true:    print product_list_title     for item in product_list:        print  Product_list.index (item) +1,item    choice = input (' Please input the  name of goods: ')     if choice > 4 or choice  < 0:        print  ' No such goods,please  reselect '         continue    elif choice <= 4 and  Choice >= 1:        if salary < product _list[choice-1][1]:            print  ' Account  balance is insufficient, please buy other products or quit '             continue         else:            shopping_ Car.append (product_list[choice-1]) #将商品添加到购物车              print  ' The goods you had buy '              for goods in shopping_car:                 print goods[0],goods[1]             salary = salary - product_list[choice-1][1]             print  ' your account balance is %s '  %salary    elif choice == 0:         print  ' your goods is  '         for  goods in shopping_car:             print goods[0], goods[1]        print  ' Your  Balance is ', salary        sys.exit (' Program exit!!! ')

Python list Exercises