Python内置函数(41)——id

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.
  返回对象的唯一标识
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
posted @ 2017-12-29 16:09  lincappu  阅读(177)  评论(0编辑  收藏