擅长:python、mysql、java
<p>你的问题很不清楚。在仔细阅读之后,我认为您希望获得一个只有字母字符的用户名。您可以使用<code>str.isalpha</code>来完成此操作:</p>
<pre><code>def getUserName():
userName = ''
while userName == '' or not userName.isalpha():
userName = input('Please input your name: ')
if not userName.isalpha():
print('Please use alphabet characters only')
return userName
userName = getUserName()
print('Thank you, {}'.format(userName))
</code></pre>