You start with an interface describing the service just as you did before.
跟前面一样，首先编写一个描述服务的接口。
Essentially it is just a dialog which is given an instance of the EnvDTE.DTE interface.
从本质上讲，它仅仅是一个给定的EnvDTE .DTE接口实例的对话框。
They are really easy to test - it's just class with an interface.
他们非常容易测试-因为EJB就是一些类和接口。
Its purpose is just to provide an interface to your application over HTTP.
它的目的是要为你的应用程序在HTTP提供一个接口。
Its purpose is just to provide an interface to your application over HTTP.
它的目的是要为你的应用程序在HTTP提供一个接口。
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