Attributes of python _ name _ and _ doc _

1 ,__ name _ attribute

The _ name _ attribute is used to determine whether the current module is a program entry. If the current program is in use, the value of __name _ is _ main __.

When writing a program, you usually need to add conditional statements to each module to test the function of this module separately.

2 ,__ doc _ Properties

The module itself is an object, and each object has a _ doc _ attribute. This attribute is used to describe the role of this object.

# Use _ doc _ attributes

Class MyClass:

'String .'

Def printSay ():

'Print say welcome to you .'

Print 'say welcome to you .'

Print MyClass. _ doc __

Print MyClass. printSay. _ doc __

# Output result

String.

Print say welcome to you.