COM组件对象的设计与应用

试验目的：通过对简单COM组件的编写，加深对COM理论知识的理解，为更深层的COM应用做准备。

试验任务：按照组件化程序设计方法，用Visual C++编写实现包含IAdd、IStr、IMul三个接口的.dll组件，并利用客户端应用程序完成对各接口的充分测试

-COM Component Object Design and Application of Test Objective: To write a simple COM component to enhance the understanding of theoretical knowledge of COM, COM applications for the deeper preparation. Test Task: component-based programming method in accordance with the preparation of Visual C++ implementation contains IAdd, IStr, IMul three interfaces. Dll components and use the client application to complete the full test of the interfaces