coding-mentor-agent/kb/python-course-kb-practical-python/wiki/exercises/4-2-adding-some-methods.md

id, source_exercise_id, title, section, source_path, source_repo, source_commit, student_visible_solution, has_private_solution, skip

id	source_exercise_id	title	section	source_path	source_repo	source_commit	student_visible_solution	has_private_solution	skip
practical-python-4.2	4.2	Adding some Methods	4.1 Classes	04_Classes_objects/01_Class.md	https://github.com/dabeaz-course/practical-python	93dca856b41c61a0a0f85ae334116e4c125629ea	false	false	false

Exercise 4.2: Adding some Methods

Source: Practical Python Programming, 04_Classes_objects/01_Class.md.

Exercise 4.2: Adding some Methods

With classes, you can attach functions to your objects. These are known as methods and are functions that operate on the data stored inside an object. Add a cost() and sell() method to your Stock object. They should work like this:

>>> import stock
>>> s = stock.Stock('GOOG', 100, 490.10)
>>> s.cost()
49010.0
>>> s.shares
100
>>> s.sell(25)
>>> s.shares
75
>>> s.cost()
36757.5
>>>

关联来源

• summaries/01_Class