摘要
本文由抽象类出发，首先介绍了接口的概念以及特点，接着着重介绍了接口的实现以及用途，最后通过例子论述了接口的实例化问题。
The paper first introduced the abstract class,next introduced the concept and features of interface, and then highlights the achievement and use about interface, at last it discussed how to instance a interface with a example.
出处
《电脑知识与技术》
2006年第6期202-203,共2页
Computer Knowledge and Technology
关键词
抽象类
接口
上传
实例化
abstract class
interface
upcasting
instance
