ADO数据控件的加载，属性设置与数据库的连接，DataGrid控件的使用，体会DataGrid控件的AllowAddNew、AllowDelete和AllowUpdate属性的作用，学会使用数据窗体向导自动构成数据访问窗体。-Action using ADO data control is loaded, set the database connection properties, DataGrid control, experience DataGrid control AllowAddNew, AllowDelete and AllowUpdate attributes, learn how to use the Data Form Wizard automatically constitute a form of data access.