急！！！重大难题

如何在后台输出动态表格中的图片（前面输出html）后台代码如下：
     if (j < total)
                {
                    sb.Append("<td bgcolor=\"#FFFFFF\"><table width=\"100%\" border=\"0\" align=\"center\" cellspacing=\"0\" cellpadding=\"0\" bgcolor=\"#FFFFFF\">" +
                            "<tr><td height=\"160\" colspan=\"2\" align=\"center\"><img src=\"img/-jp01.jpg\" width=\"150\" height=\"150\" /></td><br/></tr>" +
                            "<tr><td colspan=\"2\" align=\"center\"><a href=\"award_1284088572892.html\" target=\"_blank\">" +Title+ "</a></td></tr>" +
                            "<tr><td height=\"20\" colspan=\"2\" align=\"center\">"+NeedScore+"</td></tr>" +
                            "<tr><td width=\"40%\" height=\"30\" align=\"center\"><img src=\"img/award_detail_btn.png\" width=\"46\" height=\"23\" /></td>" +
                            "<td width=\"60%\" align=\"center\"><img src=\"img/exchange_btn.png\" width=\"69\" height=\"23\" /></td></tr></table></td>");就是这一句，格式是怎么样的？
                }
                else
                {
                    sb.Append("<td bgcolor=\"#f8b551\">&nbsp;</td>");
                }