无效的过程调用或参数

feitianyiliu

1 u) S; ?+ B5 ^! h
( E  M  b7 V  ?6 k& Z" F用VBa做了个简单的小程序，居然提示“无效的过程调用或参数”
程序：

1. Public Sub HTT()
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2. Dim Pt0, PT00 As Variant
   
3. Dim PT1(0 To 2), PT2(0 To 2), PT3(0 To 2) As Double
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4. Dim L0, L1 As Double
   
5. Dim i, m, n As Integer
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6. Dim ALine As AcadLine
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7. Pt0 = ThisDrawing.Utility.GetPoint(, "基点：")
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8. X1 = Pt0(0)
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9. Y1 = Pt0(1)
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10. L0 = ThisDrawing.Utility.GetDistance(, "单节筒节宽度：")
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11. L1 = ThisDrawing.Utility.GetDistance(, "筒节直径：")
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12. PT1(0) = Pt0(0) + L1
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13. PT1(1) = Pt0(1)
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14. PT1(2) = Pt0(2)
    
15. PT2(0) = Pt0(0) + L1
    
16. PT2(1) = Pt0(1) - l2
    
17. PT2(2) = Pt0(2)
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18. PT3(0) = Pt0(0)
    
19. PT3(1) = Pt0(1) - l2
    
20. PT3(2) = Pt0(2)
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21. 
    
22. Set ALine = ThisDrawing.ModelSpace.AddLine(Pt0, PT1)
    
23. Set ALine = ThisDrawing.ModelSpace.AddLine(PT1, PT2)
    
24. Set ALine = ThisDrawing.ModelSpace.AddLine(PT2, PT3)
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25. Set ALine = ThisDrawing.ModelSpace.AddLine(PT3, Pt0)
    
26. ZoomAll
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27. End Sub

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$ P  l' C2 K. U$ w错误提示：
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% y3 t! C( E/ \# @有知道如何解决的吗？

feitianyiliu

问题补充：
一开始能画出一条直线，后来调试了几次，一个都画不出了

woaishuijia

变量声明错误.所声明的每个变量都要一个单独的 As type 子句.如果不指定数据类型或对象类型,且在模块中没有 Deftype 语句,则该变量按缺省设置是 Variant 类型.
以第3行为例:

1. Dim PT1(0 To 2), PT2(0 To 2), PT3(0 To 2) As Double

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相当于

1. Dim PT1(0 To 2) As Variant, PT2(0 To 2) As Variant, PT3(0 To 2) As Double

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而点坐标数组要求是 Double 类型,所以第22行以后会出错.
( c0 Y# N1 u7 M$ l正确的写法应该是

1. Dim PT1(0 To 2) As Double, PT2(0 To 2) As Double, PT3(0 To 2) As Double

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其它几行 Dim 也是如此
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( y  D6 H& F2 D: G另外,12到20行计算点坐标时使用的 L1 和 l2 与 10 和 11 行 不符,错了吧?

feitianyiliu

谢谢了