C# 连接Sqlserver的基础代码，用vs可视化编辑，创建一个study的数据库并对student表进行浏览-The basis of the connection used c# code, using vs visual editing, create a database of study and the student table

C# 连接SqlServer数据库基础代码，并在可视化数据库项目中增加查询功能-Connection used c# database code base, and in the visual query function was added into the database project