说明：  microsoft 通过C#实现的对数据库连接及操作的封装，可以通过此控件直接对数据库进行连接并进行新增、修改、删除、查询等的操作。
(microsoft through the C# implementation of the database connection and operation of the package, this control can be connected directly to the database and to add, modify, delete, query and other operations.)