python的内存管理机制是什么?
回复内容：
题主需要来本《Python源码剖析》里面的讲解保证让题主满意。
从最表面看，Python（CPython）所实现的自动内存管理是简单的引用计数为主 + 标记-清除作为备份。
在这之下，CPython内部还有几层内存管理器。 楼主很没诚意，至少先利用一下google再来问问题吧？退而求其次你也先问问百度啊！
题主啊，多看看书吧，书上都有写的，我看过一本《Python核心编程》里是有的。让我说，三个字：计数器。 引用计数
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