说明：  一个三层应用程序，演示如何通过ADO对象以及存储在SQL Server中的Procedure实现高性能的数据访问(在运行程序前首先要设置SQL Server，在压缩包中有一个Procs.sql的文件，首先在SQL Server上运行该文件设置SQL Server数据库)
(a three-tier applications, demonstrating how ADO and SQL Server stored in the Procedure to achieve high-performance data access (in the first before running the program to set up SQL Server, in a compressed Procs.sql a document, the first in SQL Server running on the document set up SQL Server database))