Python learning: custom object

Python learning: custom object

I. first look at a small program

Class person: def _ init _ (self): print "new person" p = person ();

It can be seen that the class custom object with the keyword is used in python, followed by a colon

Then we need to define the constructor _ init _ of the class. In the constructor, We need to input the self parameter. this self is equivalent to this in java and points to the object itself.

Then p = Person () creates an object, and the class construction method is executed.

Execution result:

New person

Ii. Define attributes of a class

Look at a small program:

Class person: def _ init _ (self): print "new person" self. name = "lyl" p = person (); print p. name

We can see that attributes can be defined in the constructor, and self

Then we print the name attribute of the created object.

Output result:

New person
Lyl