購物車實現

shopping = [] file = (=)
user_data1 = ((file.readline()))
file3 = (=)
wage_data = ((file3.readline()))
user = ()
passwd1 = ()
user user_data1 passwd1 user_data1[user]:
    ()
    choice = ()
    choice == :
        shopping_history1 = (=)
        shopping_wage1 = (=)
        list1 = ((shopping_history1.readline()))
        list2 = ((shopping_wage1.readline()))
        shopping_history1.close()
        shopping_wage1.close()
        (% list1[user]% list2[user])
user user_data1 passwd1 user_data1[user]:
    ()
:
    wage = ()
    item = [(userpasswd1)]
    dict1 = (item)
    dict1.update(user_data1)
    file1 = (=)
    file1.write((dict1))
    file2 = (=)
    wage1 = [(userwage)]
    dict2 = (wage1)
    dict2.update(wage_data)
    file2.write((dict2))
    file1.flush()
    file2.flush()
    file1.close()
    file2.close()
    product_list = [
        ()()()()()]
file4 = (=)
wage_data2 = ((file4.readline()))
wage = (wage_data2[user]):
    indexitem (product_list):  (indexitem)
    choice = ()
    (choice) < (product_list):   choice_item = product_list[(choice)]  choice_item[] <= wage:  shopping_history1 = (=)
            list1 = ((shopping_history1.readline()))
            shopping.append(choice_item[])
            list1[user] = shopping[:]
            wage -= choice_item[]  (% (choice_item[]wage))
            ()
            (% (usershopping[:]))
            shopping_history2 = (=)
            shopping_history2.write((list1))
            wage_history = (=)
            list3 = ((wage_history.readline()))
            list3[user] = wage
            wage_history1 = (=)
            wage_history1.write((list3))
            wage_history1.flush()
            wage_history1.close()
            wage_history.close()
            shopping_history2.flush()
            shopping_history2.close()
            shopping_history1.close()
            (list1)
        :
            (% wage)
    (choice) == :
        ()
    file4.close()