C#分页

  public class PageString
    {
          /// <summary>
          /// 
          /// </summary>
          /// <param name="pageSize">一页多少条</param>
          /// <param name="currentPage">当前页</param>
          /// <param name="totalCount">总条数</param>
          /// <returns></returns>
         public static string ShowPageNavigate(int pageSize, int currentPage, int totalCount)
         {
             string redirectTo = "";
             pageSize = pageSize == 0 ? 3 : pageSize;
             var totalPages = Math.Max((totalCount + pageSize - 1) / pageSize, 1); //总页数
             var output = new StringBuilder();
             if (totalPages > 1)
             {
                 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 > 1)
                 {//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 - 1, pageSize);
                 }
                 else
                 {
                     // output.Append("<span class='pageLink'>上一页</span>");
                 }

                 output.Append(" ");
                 int currint = 5;
                 for (int i = 0; i <= 10; i++)
                 {//一共最多显示10个页码，前面5个，后面5个
                     if ((currentPage + i - currint) >= 1 && (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 + 1, 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 output.ToString();
         }

    }