It is always optional to re-state any base interface in a partial class.
分布类中是否重新声明它所实现的接口也是可选的。
Before you begin, however, you need to define the base Command interface.
然而在您开始以前，您需要定义基础Command接口。
These new functions are not part of the base class interface.
这些新方法不是基类接口的一部分。
Usually, this interface program is. manually written when the application programs and data base are integrated.
通常，这种接口程序是在应用程序与库集成时由人工编制的。
Usually, this interface program is. manually written when the application programs and data base are integrated.
通常，这种接口程序是在应用程序与库集成时由人工编制的。
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