把这段代码放在模块里面，运行这段代码

Sub 删除空行()

    Dim rCount As Long
    Dim i As Integer
    Dim Lentemp As Long
    With Application.VBE.ActiveCodePane.CodeModule
        rCount = .CountOfLines
        For i = rCount To 1 Step -1
            Lentemp = Len(.Lines(i, 1))
            Lentemp = Len(Trim(.Lines(i, 1)))
            If Lentemp = 0 Then
                .DeleteLines i
            End If
        Next i
    End With
End Sub