擅长:python、mysql、java
<p>我不确定,但我怀疑它可能类似于这个问题<a href="http://forums.devshed.com/python-programming-11/appending-object-to-list-overwrites-previous-842713.html" rel="nofollow">http://forums.devshed.com/python-programming-11/appending-object-to-list-overwrites-previous-842713.html</a>。</p>