????为什么总是显示未声明(图形设计)
大家看看我这个程序
Dim mypen As Pen
mypen = New Pen(System.Drawing.Color.Red)
Dim mydraw As System.Drawing.Graphics
mydraw = picturebox1.creategraphics() 这的picturebox1怎么总是未
声明阿
mydraw.DrawLine(mypen, 50, 20, 200, 20)
mydraw.DrawLine(mypen, 50, 20, 50, 150)
mydraw.DrawLine(mypen, 200, 20, 200, 150)
mydraw.DrawLine(mypen, 50, 150, 200, 150)
然后告诉怎么改 谢谢