Abstract

The nature is complex. If there is no way to convert the complex to simple.We will be not able to control the world.Otherwise, the abstract method give the way to deal it.And the more importance is the abstract method deeply apply in the programming.The program is the abstract of the reality. By the abstract we can let the computer do the complex thing of their own free will for us.So i have to be familiar with the abstract method ,and usually use the method consciousness.