擅长:python、mysql、java
<p>SQL Alchemy ORM提供的会话对象具有两个属性,可以帮助您执行以下操作:</p>
<p>1)<a href="https://docs.sqlalchemy.org/en/latest/orm/session_api.html#sqlalchemy.orm.session.Session.is_modified" rel="nofollow noreferrer">Session.is_modified()</a></p>
<p>2)<a href="https://docs.sqlalchemy.org/en/latest/orm/session_api.html#sqlalchemy.orm.session.Session.dirty" rel="nofollow noreferrer">Session.dirty</a></p>