vb424实时错误，怎么改？

Question

Private Sub Command1_Click()
Dim circleobj As AcadCircle
Dim centerpoint(0 To 2) As Double
Dim radius As Double
centerpoint(0) = 20#: centerpoint(1) = 30#: centerpoint(2) = 0#
radius = 5#

显示黄色行
Set circleobj = acadapp.ActiveDocument.ModelSpace.AddCircle(centerpoint, radius)

ZoomAll
End Sub

Answer 1

http://blog.sina.com.cn/s/blog_4eb23c8d01011f82.html