dpwangyanli的专栏

There are lots of design patterns,but the most important thing you should know the the principle of design.All of the patterns are followed those principles. 1.SRP -  Single Responsible Principle O...

One class should has the single responsible, we should avoid the same responsibiltes spreaded into defferent classed and avoid one class do to much responsibility. 2.ISP - Interface Segregation Principle If one class has reference to anther one, it's be