/// <summary>
 /// 设置表格的单元格的对齐方式
 /// </summary>
 /// <param name="table">表格对象索引</param>
 /// <param name="rowIndex">行号</param>
 /// <param name="clumnIndex">列号</param>
 /// <param name="align">水平对齐方式</param>
 /// <param name="valign">垂直对齐方式</param>
 public void SetTableCellAlignment(int table, int rowIndex, int clumnIndex, Word_Alignment align,
                                   Word_Alignment valign)
 {
     this.WordApp.ActiveDocument.Tables[table].Cell(rowIndex, clumnIndex).Select();
     this.WordApp.ActiveDocument.Tables[table].Cell(rowIndex, clumnIndex).VerticalAlignment =
         (WdCellVerticalAlignment)valign;
     this.WordApp.Selection.ParagraphFormat.Alignment = (WdParagraphAlignment)align;
 }
 /// <summary>
 /// 设置段落对齐方式
 /// </summary>
 /// <param name="paragraph">段落</param>
 /// <param name="alignment">对齐方式</param>
 public void SetAlignment(Paragraph paragraph, Word_Alignment alignment)
 {
     paragraph.Alignment = (WdParagraphAlignment)alignment;
 }