abstract class and interface的意思|示意

Well, an abstract class can have non-static variables, and an interface can't.

抽象类可以有非静态变量，而接口不可以有。

An interface only contains abstract methods and constants. An abstract method is one which does not have an implementation but requires that a sub-class provide it.

只有一个接口包含抽象方法和常量。一个抽象方法是一种没有实现，但需要一个子类，它提供。

In this case, we use an abstract class to define the service interface and operations of the exposed capabilities, as shown in Figure 3.

在这种情况下，我们使用一个抽象的类，来定义服务接口以及预期功能的操作，如图3所示。

These are the respective implementations of each abstract class and interface in the message queue framework interface package.

它们分别是消息队列框架接口包中每个抽象类和接口的实现。

This class exposes an interface that maps the abstract service interface, and thus hides the details of a web service invocation from the client.

这个类公开一个映射抽象服务接口的接口，从而向客户机隐藏 Web 服务调用的细节。

The host view of the add-in is the abstract base class or interface that describes the methods used by the host and the add-in, as specified in the contract.

增益集的主检视为抽象基底类别或介面，会描述主机和增益集使用的方法，如合约中所指定。