Word.Range range1, range2;
                // 跳转种类
                object objWhat = Word.WdGoToItem.wdGoToPage;
                // 跳转位置
                object objWhich = Word.WdGoToDirection.wdGoToLast;
                // 转向最后一页
                WordApp.Selection.GoTo(ref objWhat, ref objWhich, ref Nothing, ref Nothing);
                // Range取得
                range1 = WordApp.Selection.Range;
                range2 = WordApp.ActiveDocument.Range(ref Nothing, ref Nothing);
                object start = range1.Start;
                object end = range2.End;
                // 删除最后一页
                WordApp.ActiveDocument.Range(ref start, ref end).Delete(ref Nothing, ref Nothing);