elif只触发if语句

Question

使用python 2.7.5

x = (raw_input)'''What will you Reply?
a. Nod
b. Answer
c. Stare
'''))

if x == "Nod" or "a" or "nod":
    print '''You nod shyly.
"Oh that's Great"'''
elif x == "Answer" or "b" or "answer":
    print '''You answer in a low tone.
"You can speak!"'''
elif x == "Stare" or "c" or "stare":
    print '''you stare blankly, so does the AI.
"Well okay then."'''

当我运行它时,无论我在提示中输入什么,它只会触发'''你害羞地点头."哦,太好了"'''

但是,如果我复制它并将其粘贴到我的python shell中,它有一个"哦"的问题,如果我摆脱它,它有一个问题在"那是",如果我只是摆脱"这是伟大的"它对下一个elif语句的前三个字符有问题.WTF是错误的,我的python代码和shell最近工作正常,能够拆分if和elif.但现在突然间它只是不想.

Answer 1

if x == "Nod" or "a" or "nod"

被解析为

if (x == "Nod") or ("a") or ("nod"):

"a"是真实的,所以条件总是真的,无论是否x == "Nod".

相反,你可以使用:

if x in ("Nod", "a", "nod"):