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python内存管理.html
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python内存管理.html
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<!DOCTYPE html>
<html>
<head>
<meta charset='utf-8'>
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<title>python内存管理</title>
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</head>
<body>
<header>
<div class="inner">
<h1>Wiki</h1>
<h2>by chenokay</h2>
<a href="https://github.com/chenokay" class="button"><small>View my project on</small>GitHub</a>
</div>
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<section id="main-content">
<p>
python内存管理不同于c语言和c++语言，采用引用计数并进行垃圾回收，在两类语言不断切换使用中需要谨慎，
</p>
<p>
在实际使用就曾经对一个python对象的clear操作以c++语言方式导致问题，简单归纳为如下的case：
</p>
<pre>
def find_max(dict, ele):
...
dict = {}
在调用find_max中，对dict进行clear，实际上这样是没有clear成功的，相当于调用find_max scope中
dict对应对象内容还存在，导致bug
</pre>
<p>
相关文章比较多：
</p>
<p>
<a href="http://www.cnblogs.com/vamei/p/3232088.html ">比较全面简洁介绍</a>
</p>
<p>
<a href="http://engineering.hearsaysocial.com/2013/06/16/circular-references-in-python/ ">引用环介绍，其中提到weak reference值得进一步使用尝试下 </a>
</p>
</section>
<aside id="sidebar">
<h2>Zhen Chen</h2>
<p><a href="http://map.baidu.com/?newmap=1&ie=utf-8&s=s%26wd%3D%E5%A4%9A%E7%9B%9F">No.15 Wanquanzhuang Road, Haidian District, Beijing, China</a></p>
<p>chenokay@gmail.com</p>
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