擅长:python、mysql、java
<p>我知道这个问题很久以前就有了答案,但是我发现在WTForms上提供字母数字验证的另一个选项是alphanumeric()</p>
<pre><code>from wtforms_validators import AlphaNumeric
...
class SignupForm(Form):
login_id = StringField('login Id', [DataRequired(), AlphaNumeric()])
</code></pre>
<p>这里有更多详细信息<a href="https://pypi.org/project/wtforms-validators/" rel="nofollow noreferrer">https://pypi.org/project/wtforms-validators/</a></p>