擅长:python、mysql、java
<p>您可以使用“iterable”,例如<code>tuple</code>或<code>list</code>。点击这里:<a href="https://docs.python.org/3/library/stdtypes.html?highlight=iterable#sequence-types-list-tuple-range" rel="nofollow noreferrer">Python docs</a><br/>
因此,对于您的代码,您可以使用:</p>
<pre><code>login = "user"
commandLogin = "login"
commandRegister = "register"
commandExit = "exit"
commandList = [commandLogin, commandRegister, commandExit]
enter = input(login + ">")
while enter not in commandList:
print("Incorrect command!")
enter = input(login + ">")
</code></pre>