在ppt vba中如果要循环批量删除幻灯片中的图形等对象,会遇到很多困难。
比如当执行如下For Each … In 的vba代码删除ppt中第一张幻灯片中的所有图片后,会发现并没有将图片全部删除。
Sub QQ1722187970()
Dim oPPT As PowerPoint.Presentation
Dim oSlide As Slide
Set oPPT = PowerPoint.ActivePresentation
Dim oSP As Shape
With oPPT
Set oSlide = .Slides(1)
With oSlide
For Each oSP In .Shapes
oSP.Delete
Next
End With
End With
End Sub
当修改为执行如下的For i = 1 To .Shapes.Count 的vba代码删除ppt中第一张幻灯片中的所有图片时
Sub QQ1722187970()
Dim oPPT As PowerPoint.Presentation
Dim oSlide As Slide
Set oPPT = PowerPoint.ActivePresentation
Dim oSP As Shape
With oPPT
Set oSlide = .Slides(1)
With oSlide
For i = 1 To .Shapes.Count
Set oSP = .Shapes(i)
oSP.Delete
Next i
End With
End With
End Sub
会弹出数字已经超出边界的提示错误如下图所示:

以上两种批量删除对象的方法在excel vba和word vba中都是最常用的,而且也是最安全的删除方法,但是到了ppt vba中却都不行了,经过仔细的分析,原来ppt vba中每删除一个对象,会自动调整所有对象的索引号,导致有些索引号空缺,从而出现删不尽或者索引号超出边界的现象发生。
为了解决这个问题,需要每次将要删除的对象的名称存入数组,然后用ShapeRange对象删除,代码如下:
Sub QQ1722187970()
Dim oPPT As PowerPoint.Presentation
Dim oSlide As Slide
Set oPPT = PowerPoint.ActivePresentation
Dim oSP As Shape
Dim oSPRange As ShapeRange
Dim arr()
With oPPT
Set oSlide = .Slides(1)
With oSlide
For Each oSP In .Shapes
ReDim Preserve arr(k)
arr(k) = oSP.Name
k = k + 1
Next
Set oSPRange = .Shapes.Range(arr)
oSPRange.Delete
End With
End With
End Sub


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