Analysis of the Role of the comma after the Python value assignment statement, and the python value assignment statement comma

Source: Internet
Author: User

Analysis of the Role of the comma after the Python value assignment statement, and the python value assignment statement comma

This example describes the role of a comma after a value assignment statement in Python. Share it with you for your reference. The specific analysis is as follows:

IDLE 2.6.2

>>> A = 1 >>> B = 2, >>> print type (a) <type 'int' >>>> print type (B) <type 'tuple' >>>> c = [] >>>> d = [], >>> print type (c) <type 'LIST' >>> print type (d) <type 'tuple'>

After a comma is added to the value expression, a tuple object is automatically generated. Expected results cannot be obtained when type-related work or serialization is required. When you encounter a similar spirit phenomenon in your work, you can put this in your own checklist.

>>> Print c [] >>> print d ([],) >>> print a1 >>> print B (2 ,)

I hope this article will help you with Python programming.

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