HSSFSheet sheet =workBook.getSheetAt(0);         HSSFPatriarch patr = sheet.createDrawingPatriarch(); // 定义注释的大小和位置，详见文档         HSSFComment comment = patr.createComment(new HSSFClientAnchor(0,0,0,0, (short)4, 2 ,(short) 6, 5)); // 设置注释内容         comment.setString(new HSSFRichTextString("可以在POI中添加注释！"));