C ++ ape's Python note 06-class

Class 1. The first parameter of the method using the keyword class2. is always self, like the explicit this. Note: The name of the first parameter is random or not called self, but its meaning is fixed. 3. Create a class object by adding () after the class name # ! /Usr/bin/Python
# Filename: method. py
Class Person:
Def Sayhi (Self ):
Print   ' Hello, how are you? '
P = Person ()
P. sayhi ()
4. _ init _ method, that is, constructor Class Person:
Def   _ Init __ (Self, name ):
Self. Name = Name
Def Sayhi (Self ):
Print   ' Hello, my name is ' , Self. Name
P = Person ( ' Swaroop ' )
P. sayhi () 5. The _ del _ method is the structure, but you do not know when it will be executed. Manually run del keyword 5. self. the instance variables are displayed, and the variables of the class are not displayed by self. 6. _ Prefix: the private access domain is correct. The variable starting with _ is private. 7. inherited syntax class derived (base ):