字符串的Python或操作

Question

我正在从事一个自动化咖啡店的入门级项目，我的代码遇到了一个小问题。我有这个代码如果订单！=“摩卡咖啡”或“frappuccino”或“卡布奇诺”：以便在第一选择时过滤掉选择。但是，当我尝试运行代码时，函数的响应（yes\u或no\u问题）似乎也会经过上面提到的if语句，我不知道为什么。我确实怀疑OR操作和字符串有问题，如果不是代码设置方式的逻辑错误的话。我已经在下面列出了我的测试运行错误，感谢大家花宝贵的时间帮助初学者

#side functions
def ask_amount_m():
    amount = int(input("How many would you like?"))
    response_1 = "{} mocha coming up".format(amount)
    print(response_1)
    return amount
def ask_amount_f():
    amount = int(input("How many would you like?"))
    response_2 = "{} frappuccino coming up".format(amount)
    print(response_2)
    return amount
def ask_amount_c():
    amount = int(input("How many would you like?"))
    response_3 = "{} cappuccino coming up".format(amount)
    print(response_3)
    return amount
**def yes_or_no_question():**
    x = input("Would you like to order anything else?")
    if x == "yes":
        first_step()
    if x == "no":
        response_bye = "Have a nice day!"
        print(response_bye)

#main code starts here
def first_step():
    order = input("What would you like to order today?")
    if order == "mocha":
        ask_amount_m()
        yes_or_no_question()

    if order == "frappuccino":
        ask_amount_f()
        yes_or_no_question()

    if order == "cappuccino":
        ask_amount_c()
        yes_or_no_question()

    **if order != "mocha" or "frappuccino" or "cappuccino":**
        print("Try again")
        first_step()

first_step()

Test run error example:
What would you like to order today?kk
Try again
What would you like to order today?kjgg;]
Try again
What would you like to order today?frappuccino
How many would you like?234
234 frappuccino coming up
Would you like to order anything else?no
Have a nice day!
Try again
What would you like to order today?

Answer 1

试试这个： 如果有订单！=“摩卡咖啡”或订单！=“frappuccino”或订单！=“卡布奇诺”：**

Answer 2

手术室不是这样工作的。将该管路更换为以下部件：

if order not in ("mocha", "frappuchino", "cappuchino"):

Answer 3

您可以使用in运算符：

if order not in ["mocha", "frappuccino", "cappuccino"]:
    # better grab some tea