Python built-in functions (31) -- id, python built-in functions 31

Python built-in functions (31) -- id, python built-in functions 31

English document:

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.

Note:

1. Unique Identifier of the returned object, represented by an integer. This identifier constant is unique within the life cycle of a program.

>>> A = 1 >>> id (a) 1652447504 >>>> id (1.0) 66116592 >>> a = 'some text' >>> id (a) 69228568