Python实战购物车项目的实现参考

# --*--coding:utf-8--*--# Author: 村雨import pprintproductList = [('Iphone 8', 10000),        ('GTX2080', 8000),        ('Z7KP7-GT', 6000),        ('Mac pro', 15000),        ('Honor 10', 2800),        ('Iphone XR', 12000),        ('Mi 8', 2999)        ]shoppingList = []print('输入你的工资:')salary = input()if not salary.isdigit():  print('请输入整数')else:  salary = int(salary)  while True:    for index, item in enumerate(productList):      print(index + 1, item)    print('输入你要买的商品的序号：')    userWant = input()    if userWant.isdigit():      userWant = int(userWant)      if userWant <= len(productList) and userWant > 0:        print('你要购买的是：', productList[userWant - 1][0])        if salary >= productList[userWant - 1][1]:          shoppingList.append(productList[userWant - 1][0])          salary -= productList[userWant - 1][1]          print('你已经购买了' + productList[userWant - 1][0] + ', 你的余额为 ' + str(salary))        else:          print('对不起，你的余额不足！请努力工作吧！')          print('你当前所购买的商品为：')          for brought in shoppingList:            pprint.pprint(brought)          print('你当前余额为：', salary)          exit()      else:        print('你输入的商品序号有错，请重新输入')    elif userWant == 'q':      print('-----------Shopping List----------')      for brought in shoppingList:        pprint.pprint(brought)      print('你的余额为 ', salary)      exit()    else:      print('Invalid input！！！')