看不到图片,要不你将你那个页面的代码发上来看一下吧

Imports System.Data.sqlclient

Public Class Form1
    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
      
        Dim sqlcon As New SqlConnection()

    End Sub
End Class

Dim sqlcon As New SqlConnection()
==========================>
Dim sqlcon As New SqlConnection

奇怪了，刚才，确实不行，现在怎么又可以了