python - Python-if语句无法正常工作

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How to test multiple variables against a value?
（24个答案）
5年前关闭。
我刚开始使用python，但在我的脑海中，有些东西显然应该有用。这是我的第一个代码，我只是尝试与用户进行对话。

year = input("What year are you in school? ")
yearlikedislike = input("Do you like it at school? ")
if (yearlikedislike == "yes" or "Yes" or "YES" or "yep" or "yup" or "Yep" or "Yup"):
    print("What's so good about year " + year, "? ")
    input("")
    print("That's good!")
    time.sleep(1)
    endinput = input("I have to go now. See you later! ")
    exit()
if (yearlikedislike == "no" or "No" or "nope" or "Nope" or "NOPE"):
    print("What's so bad about year " + year, "?")
    input("")
    time.sleep(1)
    print("Well that's not very good at all")
    time.sleep(1)
    endinput = input("I have to go now. See you later! ")
    time.sleep(1)
    exit()

我的问题是，即使我用否定的回答来回答，它仍然会用一个回答来回答，好像我说了“是”，如果我把2转过来（所以否定回答的代码高于肯定回答的代码），它总是用一个否定的回答来回答。

最佳答案

if yearlikedislike in ("yes", "Yes", "YES", "yep", "yup", "Yep", "Yup"):

或

if yearlikedislike.lower() in ("yes","yep","yup"):

会成功的