後端 Python 專案練習集

2022-09-11 19:03:17 字數 1921 閱讀 9980

1 1.

2'''

3knowledge_point:

41.練習if...else;

52.練習while;

63.練習列表的切片取值;78

requirements:

9購物車:

101.程式啟動後,輸入工資,列印商品列表

112.提示使用者根據商品編號購買產品

123.選擇商品後檢測餘額是否足夠,扣款或提醒餘額不足

134.隨時退出,退出時列印已經購買的商品和餘額

1415

code:

16'''

17 product_li =[

18 ("

mac pro

", 12000),

19 ("

hp", 5000),

20 ("

iphone

", 6000),

21 ("

huawei

", 5000),

22 ("

gopro

", 4000)23]

24 salary = input("

input salary: ")

25 shopping_li =

26if

salary.isdigit():

27 salary =int(salary)

28while

true:

29for i, item in

enumerate(product_li):

30print(i+1, item)

31 choice_num = input('

輸入編號購買:')

32if

choice_num.isdigit():

33 choice_num =int(choice_num)

34if choice_num <= len(product_li) and choice_num >=0:

35 paid_price = product_li[choice_num-1][1]

36if paid_price <=salary:

37 paid_item = product_li[choice_num - 1]

38print("

you can pay")

3940 salary -=paid_price

41print("

surplus is \033[32;1m{}\033[0m

".format(salary))

42else:43

print('

\033[41;1m not enough money {}\033[0m

'.format(salary))

44else:45

print("

product is not exist")

46elif choice_num == "q"

:47#print("exited")

48print('

---------shopping_list_as_follows-------------')

49for p in

shopping_li:

50print

(p)51

print("

current balance is {}

".format(salary))

52 exit() #

退出53

else:54

print("

invalid choice

")

view code

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