Dim str As String = ConfigurationManager.ConnectionStrings("txtConnectionString").ConnectionString
Dim conn As SqlConnection = New SqlConnection(str)
Dim cmd As New SqlCommand(txtSql, conn)
cmd.CommandType = Data.CommandType.Text
conn.Open()
...
现在接触winform ,发现不同了,不知道怎样可以和web那样很好的和 通过ODBC连接 管理数据库,查询,更新,删除