擅长:python、mysql、java
<p>像这样使用</p>
<pre><code>class News(db.Expando):
title = db.StringProperty()
#category = db.TextProperty() -> removed property
tags = db.StringProperty()
content_short = db.TextProperty()
content_long = db.TextProperty()
date = db.DateTimeProperty()
views = db.IntegerProperty(default=0)
</code></pre>
<p>以及</p>
^{pr2}$
<p>完整代码在这里-<a href="http://appengine4dummies.blogspot.com/2012/01/text-that-matters-deleting-appengine.html" rel="nofollow">http://appengine4dummies.blogspot.com/2012/01/text-that-matters-deleting-appengine.html</a></p>