在word使用vba替换英文标点符号为中文标点符号，其中如果英文冒号":"前后都是数字则不进行替换，否则替换为中文冒号“：”，如果英文句号“.”前后都是数字则不进行替换，否则替换为中文句号“。”

可以使用以下的VBA代码来实现这个功能：

Sub ReplacePunctuation()
    Dim punc As Variant
    Dim i As Long
    Dim beforeNum As Boolean, afterNum As Boolean
    
    '定义需要替换的标点符号
    punc = Array(".", ":", ";", ",", "?", "!", "-", "--", "(", ")", "[", "]", "{", "}", "/", "\", "'", """")
    
    '循环遍历所有标点符号
    For i = LBound(punc) To UBound(punc)
        '判断当前标点符号是否为冒号或句号
        If punc(i) = ":" Or punc(i) = "." Then
            '循环遍历文档中的所有单词
            For Each w In ActiveDocument.Words
                beforeNum = False
                afterNum = False
                '判断当前单词前后是否为数字
                If IsNumeric(Left(w, 1)) Then beforeNum = True
                If IsNumeric(Right(w, 1)) Then afterNum = True
                '如果冒号前后都是数字或者句号前后都是数字，则不进行替换
                If (punc(i) = ":" And beforeNum And afterNum) Or (punc(i) = "." And beforeNum And afterNum) Then
                    '不进行替换操作
                Else
                    '将英文标点符号替换为中文标点符号
                    w = Replace(w, punc(i), IIf(punc(i) = ":", "：", "。"))
                End If
            Next w
        Else
            '将英文标点符号替换为中文标点符号
            ActiveDocument.Range.Replace What:=punc(i), Replacement:=IIf(punc(i) = "'", "‘", IIf(punc(i) = """", "“", IIf(punc(i) = "/", "／", IIf(punc(i) = "\", "＼", IIf(punc(i) = "-", "—", IIf(punc(i) = "--", "——", IIf(punc(i) = "[", "［", IIf(punc(i) = "]", "］", punc(i)))))))), MatchWholeWord:=True, ReplaceAll:=True
        End If
    Next i
End Sub

注意：在使用这段代码之前，请务必备份您的Word文档，以免数据丢失。