vb.net 画直线问题2

发布网友发布时间：2023-09-27 03:47

共1个回答

热心网友时间：2024-04-15 23:23

'把“Dim graph As Graphics = Me.CreateGraphics”挪到“Button1_Click”事件内，调试过成功！
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim graph As Graphics = Me.CreateGraphics
Dim pen2 As Pen = New Pen(Color.Green, 3)
graph.DrawLine(pen2, 400, 400, 500, 200)
End Sub
End Class

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