(被有关问题卡住了)选择两个节点之间的范围 ,删除此范围之间的数据和者表格,然后插入数据

(被问题卡住了)选择两个节点之间的范围 ,删除此范围之间的数据和者表格,然后插入数据。
选择两个节点之间的范围 ,删除此范围之间的数据或者表格,然后插入数据。
比如:将“作业日志如下"和”作业日志如上"之间的信息删除,然后加入“"hello world"”
------------修改之前卫-----------

作业日志如下

TABLE_A

DATA_B
作业日志如上

-------------修改之后为------
作业日志如下
hello world
作业日志如上


--------思路所得来自于word 帮助代码 ,附上代码 begin --------

Dim rng As Word.Range

If Me.Sentences.Count >= 2 Then

  Dim startLocation As Object = Me.Sentences(2).Start
  Dim endLocation As Object = Me.Sentences(2).End

  ' Supply a Start and End value for the Range.
  rng = Me.Range(Start:=startLocation, End:=endLocation)

  ' Select the Range
  rng.Select()
End If



--------思路所得来自于word 帮助代码 ,附上代码 end --------


----我的代码 begin------------
---错误见加红出
---问题应该不单出在加红出,可以的话,请调试出正确结果
Sub btnWorkSummaryUpLoad()
  Dim objWordApp As Object
  Dim objWord As Object
  'Dim objWord As Word.Document

  Dim myRange As Object

  ' Dim mySelection As Word.Selection
  Dim mySelection As Object
  ' Dim mySelection As Selection
   
  '范围开始处
  Dim startLocation As Object
   
  '范围结束处
  Dim endLocation As Object
   
   
   

  Set objWordApp = CreateObject("Word.Application")
   
  Set objWord = objWordApp.Documents.Open("d:\TEST.doc")
   
  ''''''''''''''''''''''定义范围开始处 begin '''''''''''''''''
  Set myRange = objWord.Content
  ' Debug.Print myRange.Text
  myRange.Find.ClearFormatting
  myRange.Find.Execute findText:="作业日志如下", Forward:=True
  If myRange.Find.Found = True Then
   
  myRange.Select
  Set mySelection = objWord.ActiveWindow.Selection
  With mySelection
  .Collapse Direction:=wdCollapseEnd '光标指向行尾
  .TypeParagraph '回车换行
  End With
   
  Set startLocation = mySelection.Range
  Debug.Print startLocation.Text
   
  End If
  ''''''''''''''''''''''定义范围开始处 end '''''''''''''''''
  Set myRange = Nothing
   
   
  ''' ''''''''''''''''''''''定义范围结束处 begin '''''''''''''''''
  Set myRange = objWord.Content
  ' Debug.Print myRange.Text
  myRange.Find.ClearFormatting
  myRange.Find.Execute findText:="作业日志如上", Forward:=True
  If myRange.Find.Found = True Then
   
  myRange.Select
  mySelection = objWord.ActiveWindow.Selection
  With mySelection
  .Collapse Direction:=wdCollapseStart '光标指向行首
  .MoveLeft Unit:=wdWord, Count:=1
  End With
   
  Set endLocation = mySelection.Range
  Debug.Print endLocation.Text
   
  End If  
  ''''''''''''''''''''''定义范围结束处 end '''''''''''''''''
  Set myRange = Nothing
  Set myRange = objWord.Range(Start:=startLocation, End:=endLocation)'error 类型不匹配 
  myRange.Delete
  myRange.InsertAfter "hello world"
  
  objWord.Save
   
  objWord.Close
  objWordApp.Quit
   
End Sub

----我的代码 end------------