/**
     +----------------------------------------------------------
     * 架构函数
     +----------------------------------------------------------
     * @access public
     +----------------------------------------------------------
     * @param array $totalRows  总的记录数
     * @param array $listRows  每页显示记录数
     * @param array $parameter  分页跳转的参数
     +----------------------------------------------------------
     */
    public function __construct($totalRows,$listRows=\'\',$parameter=\'\') {
        $this->totalRows = $totalRows;
        $this->parameter = $parameter;
        $this->varPage = C(\'VAR_PAGE\') ? C(\'VAR_PAGE\') : \'p\' ;
        if(!empty($listRows)) {
            $this->listRows = intval($listRows);
        }
        $this->totalPages = ceil($this->totalRows/$this->listRows);     //总页数
        $this->coolPages  = ceil($this->totalPages/$this->rollPage);
        //$_GET验证
        $this->nowPage = intval($_GET[$this->varPage]);
        $this->nowPage = $this->nowPage > 0 ? $this->nowPage : 1;

        if(!empty($this->totalPages) && $this->nowPage>$this->totalPages) {
            $this->nowPage = $this->totalPages;
        }
        $this->firstRow = $this->listRows*($this->nowPage-1);
    }

    public function setConfig($name,$value) {
        if(isset($this->config[$name])) {
            $this->config[$name]    =   $value;
        }
    }

    /**
     +----------------------------------------------------------
     * 分页显示输出
     +----------------------------------------------------------
     * @access public
     +----------------------------------------------------------
     */
    public function show() {

     if(0 == $this->totalRows) return \'\';

     //处理参数
        $p = $this->varPage;
        $url  =  $_SERVER[\'REQUEST_URI\'].(strpos($_SERVER[\'REQUEST_URI\'],\'?\')?\'\':\"?\").$this->parameter;
        $parse = parse_url($url);
        if(isset($parse[\'query\'])) {
            parse_str($parse[\'query\'],$params);
            unset($params[$p]);
            $url   =  $parse[\'path\'].\'?\'.http_build_query($params);
        }

        /* 分页逻辑  */      

        //当总数小于显示的页码数
        if ($this->totalPages <= $this->rollPage) {
         $start = 1;
         $end   = $this->totalPages;
        }
        else{
         //
         if  ($this->nowPage <= $this->rollPage - 1) {
          $start = 1;
          $end   = $this->rollPage;

          $islast = true;
         } 
         else if ($this->nowPage > $this->totalPages - $this->rollPage + 1) {
          $start = $this->totalPages - ($this->rollPage - 1);
          $end   = $this->totalPages;

          $isfirst = true;
         }
         else{
          //浮动数
          $size = floor($this->rollPage / 2);

          $start = $this->nowPage - $size;
          $end   = $this->nowPage + $size;

          $isfirst = true;
          $islast = true;
         }
        }

        //上下翻页字符串
        $upRow   = $this->nowPage - 1;
        $downRow = $this->nowPage + 1;

       
        /* 拼装HTML */

        //< 1...     ...last >
        if ($isfirst){
         $theFirst = \"<a class=\'firstPage\' href=\'\".$url.\"&\".$p.\"=1\' >\".$this->config[\'first\'].\"</a>\";
        }
        if ($islast){
         $theEnd = \"<a class=\'lastPage\' href=\'\".$url.\"&\".$p.\"=$this->totalPages\' >\".$this->config[\'last\'].\"</a>\";
        }

        if ($upRow > 0){
         $upPage = \"<a class=\'upPage\' href=\'\".$url.\"&\".$p.\"=$upRow\'>\".$this->config[\'prev\'].\"</a>\";
        }

        if ($downRow <= $this->totalPages){
         $downPage = \"<a class=\'downPage\' href=\'\".$url.\"&\".$p.\"=$downRow\'>\".$this->config[\'next\'].\"</a>\";
        }

       if($start==3){
         $linkPage .= \"<a href=\'\".$url.\"&\".$p.\"=2\'>2</a>\";
        }
        if($start>=4){
         $linkPage .= \"<a href=\'\".$url.\"&\".$p.\"=2\'>2</a> <span class=\'noEndClass\'>...</span>\";
        }
        //1 2 3 4 5
        for($i=$start;$i<=$end;$i++){
         if($i!=$this->nowPage){
          $linkPage .= \" <a href=\'\".$url.\"&\".$p.\"=$i\'> \".$i.\" </a>\";
         }else{
          $linkPage .= \" <span class=\'current\'>\".$i.\"</span>\";
         }
         if($i==$end){
          if($i<$this->totalRows){
           $linkPage .= \" <span class=\'noEndClass\'>...</span>\";
          }
         }
        }

        $pageStr = str_replace(
            array(\'%header%\',\'%nowPage%\',\'%totalRow%\',\'%totalPage%\',\'%upPage%\',\'%first%\',\'%prePage%\',\'%linkPage%\',\'%nextPage%\',\'%downPage%\',\'%end%\'),
            array($this->config[\'header\'],$this->nowPage,$this->totalRows,$this->totalPages,$upPage,$theFirst,$prePage,$linkPage,$nextPage,$downPage,$theEnd),$this->config[\'theme\']);

        //显示模式  普通false 带跳转ture
        if (!empty($this->config[\'redirect\'])){
         $html = $pageStr;

        }else{
         //传递参数
         if($this->totalPages > 1){
          $redirect = \" 到第 <form method=\'get\' action=\'\'><input name=\".$p.\" type=\'text\' class=\'page_text\' size=\'3\' maxlength=\'3\' value=\'\" . $this->nowPage .\"\'/> 页 <input type=\'submit\' class=\'page_btn\' value=\'确定\' />\";
          if ($params){
           foreach($params as $k => $v){
            $string .= \"<input type=\'hidden\' name=\'\" . $k . \"\' value=\'\" . $v . \"\'/>\";
           }
           $redirect = $redirect . $string . \'</form></div>\';
          }else{
           $redirect = $redirect . \'</form></div>\';
          }
         }
         //生成Html字符串
         $html = $pageStr . $redirect;      
        } 
        return $html;
    }

}