SQL Server dll：提供连接SQL Server 200数据库的源代码，详细展示了如何连接数据库，如何读取和写入数据库。源代码经过实际项目测试，极大的方便了对数据库的操作。-SQL Server dll: this project provides connection to　SQL Server 200 database, the source code detailly shows how to connect to the database, how to read and write to the database. After the actual project source code testing, it is greatly facilitated to operate the database.