Dim Con As New SqlConnection("server=localhost;database = northwind;integrated security = true")提示等号附近又语法错误怎么改啊  谢谢喽

改成这样试试
Dim Con As SqlConnection = New SqlConnection("server=localhost;database = northwind;integrated security = true")
或者用下面的语句
Dim Con As SqlConnection = New SqlConnection("Data Source=localhost;Integrated Security=SSPI;Initial Catalog=northwind")

还是不行啊  提示等号附近语法又错误

好了  晕死 就差一个空格