织梦利用Ajax实现瀑布流下拉无限加载（不带点击加载按钮）

//列表页瀑布流无限加载代码if(isset($_GET['AJAX'])){        $typeID = isset($_GET['typeID']) ? intval($_GET['typeID']): 0;//传递过来的分类ID        $page = isset($_GET['page']) ? intval($_GET['page']): 0;//页码        $pagesize = isset($_GET['pagesize']) ? intval($_GET['pagesize']): 15;//每页多少条，也就是一次加载多少条数据        $start = $page>0 ? ($page-1)*$pagesize : 0;//数据获取的起始位置。即limit条件的第一个参数。        $typesql = $typeID ? " WHERE typeID=$typeID" : '';//这个是用于首页实现瀑布流加载，因为首页加载数据是无需分类的，所以要加以判断，如果无需        $total_sql = "SELECT COUNT(ID) as num FROM `dede_archives` $typesql ";        $temp = $dsql->Getone($total_sql);        $total = 0;//数据总数        $load_num =0;        if(is_array($temp)){                $load_num= round(($temp['num']-15)/$pagesize);//要加载的次数,因为默认已经加载了                $total = $temp['num'];        }        $sql = "SELECT a.*,t.typedir,t.typename,t.isdefault,t.defaultname,t.namerule,t.namerule2,t.ispart,t.moresite,t.siteurl,t.sitepath        FROM `dede_archives` as a JOIN `dede_arctype` AS t ON a.typeID=t.ID $typesql ORDER BY ID DESC liMIT $start,$pagesize";        $dsql->Setquery($sql);        $dsql->Execute('List');        $statu = 0;//是否有数据，默认没有数据        $data = array();        $index = 0;        while($row = $dsql->GetArray("List")){                $row['info'] = $row['info'] = $row['infos'] = cn_substr($row['description'],160);                $row['ID'] = $row['ID'];                $row['filename'] = $row['arcurl'] = GetfileUrl($row['ID'],$row['typeID'],$row['senddate'],$row['Title'],$row['ismake'],$row['arcrank'],$row['namerule'],$row['typedir'],$row['money'],$row['filename'],$row['moresite'],$row['siteurl'],$row['sitepath']);                $row['typeurl'] = GetTypeUrl($row['typeID'],$row['isdefault'],$row['defaultname'],$row['ispart'],$row['namerule2'],$row['sitepath']);                if($row['litpic'] == '-' || $row['litpic'] == ''){                        $row['litpic'] = $GLOBALS['cfg_CMSpath'].'/images/defaultpic.gif';                }                if(!preg_match("#^http:\/\/#i",$row['litpic']) &&$GLOBALS['cfg_multi_site'] == 'Y'){                        $row['litpic'] = $GLOBALS['cfg_mainsite'].$row['litpic'];                }                $row['picname'] = $row['litpic'];//缩略图                //$row['stime'] = GetDateMK($row['pubdate']);                $row['stime'] = date('Y-m-d H:i',$row['pubdate']);                $row['click'] = $row['click'];                $row['typelink'] = "".$row['typename']."";//分类链                $row['fullTitle'] = $row['Title'];//完整的标题                $row['shortTitle'] = $row['shortTitle'];//副标题                $row['Title'] = cn_substr($row['Title'],80);//截取后的标题                $data[$index] = $row;                $index++;        }        if(!empty($data)){                $statu = 1;//有数据        }        $result =array('statu'=>$statu,'List'=>$data,'total'=>$total,'load_num'=>$load_num);        echo Json_encode($result);//返回数据        exit();}