擅长:python、mysql、java
<p>Python列出了对数据的存储引用,而不是数据本身。直接来自python源代码<a href="https://github.com/python/cpython/blob/master/Include/object.h" rel="nofollow noreferrer">^{<cd1>}</a>:</p>
<blockquote>
<p>Objects are always accessed through pointers of the type 'PyObject *'.
The type 'PyObject' is a structure that only contains the reference
count and the type pointer. The actual memory allocated for an object
contains other data that can only be accessed after casting the
pointer to a pointer to a longer structure type.</p>
</blockquote>
<p>如果您需要更详细的信息,源代码中的注释是详细的和描述性的。在</p>