public static HtmlString ShowPageNavigate(this HtmlHelper htmlHelper, int currentPage, int pageSize, int totalCount)

         {

             var redirectTo = htmlHelper.ViewContext.RequestContext.HttpContext.Request.Url.AbsolutePath; //获取请求的地址

             pageSialPages = Math.Max((totalCount + pageSize - ) / pageSize, ); //总页数

             var outpuze = pageSize ==  ?  : pageSize;

             var tott = new StringBuilder();

             if (totalPages > )

             {

                 //if (currentPage != 1)

                 {//处理首页连接

                     output.AppendFormat("<a class='pageLink' href='{0}?pageIndex=1&pageSize={1}'>首页</a> ", redirectTo, pageSize);

                 }

                 if (currentPage > )

                 {//处理上一页的连接

                     output.AppendFormat("<a class='pageLink' href='{0}?pageIndex={1}&pageSize={2}'>上一页</a> ", redirectTo, currentPage - , pageSize);

                 }

                 else

                 {

                     // output.Append("<span class='pageLink'>上一页</span>");

                 }

                 output.Append(" ");

                 int currint = ;

                 for (int i = ; i <= ; i++)

                 {//一共最多显示10个页码，前面5个，后面5个

                     if ((currentPage + i - currint) >=  && (currentPage + i - currint) <= totalPages)

                     {

                         if (currint == i)

                         {//当前页处理

                             //output.Append(string.Format("[{0}]", currentPage));

                             output.AppendFormat("<a class='cpb' href='{0}?pageIndex={1}&pageSize={2}'>{3}</a> ", redirectTo, currentPage, pageSize, currentPage);

                         }

                         else

                         {//一般页处理

                             output.AppendFormat("<a class='pageLink' href='{0}?pageIndex={1}&pageSize={2}'>{3}</a> ", redirectTo, currentPage + i - currint, pageSize, currentPage + i - currint);

                         }

                     }

                     output.Append(" ");

                 }

                 if (currentPage < totalPages)

                 {//处理下一页的链接

                     output.AppendFormat("<a class='pageLink' href='{0}?pageIndex={1}&pageSize={2}'>下一页</a> ", redirectTo, currentPage + , pageSize);

                 }

                 else

                 {

                     //output.Append("<span class='pageLink'>下一页</span>");

                 }

                 output.Append(" ");

                 if (currentPage != totalPages)

                 {

                     output.AppendFormat("<a class='pageLink' href='{0}?pageIndex={1}&pageSize={2}'>末页</a> ", redirectTo, totalPages, pageSize);

                 }

                 output.Append(" ");

             }

             output.AppendFormat("第{0}页 / 共{1}页", currentPage, totalPages);//这个统计加不加都行

             return new HtmlString(output.ToString());

         }