说明：  全书以组件与分布式应用开发为主题，贯穿示例深入浅出地介绍了Delphi7支持的组件技术，VCL库的扩充方法、可视组件的开发与发布、ActiveX控件技术、COM/DCOM/COM+的基本概念与原理、应用CORBA、分布式web与电子商务等
(The book to components and distributed application development as the theme, runs through the sample learn more on the Delphi7 component technology supported, VCL library expansion methods, visual component-based development and publishing, ActiveX control technology, COM/DCOM/COM+ The basic concepts and principles, application of CORBA, a distributed web and e-commerce, etc.)