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Python内置函数(31)——id

时间:2016-11-02 00:34:49      阅读:196      评论:0      收藏:0      [点我收藏+]

标签:ati   ddr   const   blog   objects   uri   utils   and   ref   

英文文档:

id(object)
Return the “identity” of an object. This is an integer which is guaranteed to be unique and constant for this object during its lifetime. Two objects with non-overlapping lifetimes may have the same id() value.
CPython implementation detail: This is the address of the object in memory.
说明:
  
  1. 返回对象的唯一标识符,用整数表示。在程序生命周期内,这个标识符常量是唯一的。
>>> a = 1
>>> id(a)
1652447504
>>> id(1.0)
66116592
>>> a = some text
>>> id(a)
69228568

 

Python内置函数(31)——id

标签:ati   ddr   const   blog   objects   uri   utils   and   ref   

原文地址:http://www.cnblogs.com/sesshoumaru/p/6014302.html

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