擅长:python、mysql、java
<p>你需要检查真/假,因为你不会得到任何异常,所以不要尝试“除非”。代码应该是</p>
<pre><code>def AddNewWords():
List = []
Exit = False
while not Exit:
choice = input("Please enter a word to be added to the text file: ")
if not choice.isalpha():
print("Not a valid word")
continue
else:
List.append(choice)
Exit = True
return List
AddNewWords()
</code></pre>