index控制器中的index操作

index.php类初始化以后，默认执行indexOp()操作：

public function indexOp(){
   //输出管理员信息
   Tpl::output('admin_info',$this->getAdminInfo());  //getAdminInfo（）继承于父类SystemControl
   //输出菜单
   $this->getNav('',$top_nav,$left_nav,$map_nav);  //获取菜单，在公共方法中
   Tpl::output('top_nav',$top_nav);
   Tpl::output('left_nav',$left_nav);
   Tpl::output('map_nav',$map_nav);
   Tpl::showpage('index','index_layout');
}

protected final function getNav($permission = '',&$top_nav,&$left_nav,&$map_nav){

   $act = $_GET['act']?$_GET['act']:$_POST['act'];
   $op = $_GET['op']?$_GET['op']:$_POST['op'];
   if ($this->admin_info['sp'] != 1 && empty($this->permission)){
      $gadmin = Model('gadmin')->getby_gid($this->admin_info['gid']);
      $permission = decrypt($gadmin['limits'],MD5_KEY.md5($gadmin['gname']));
      $this->permission = $permission = explode('|',$permission);
   }
   Language::read('common');
   $lang = Language::getLangContent();
   $array = require(BASE_PATH.'/include/menu.php');
   $array = $this->parseMenu($array);
   //管理地图
   $map_nav = $array['left'];
   unset($map_nav[0]);//unset()销毁变量

   $model_nav = "<li><a class=\"link actived\" id=\"nav__nav_\" href=\"javascript:;\" onclick=\"openItem('_args_');\"><span>_text_</span></a></li>\n";
   $top_nav = '';

   //顶部菜单
   foreach ($array['top'] as $k=>$v) {
      $v['nav'] = $v['args'];
      $top_nav .= str_ireplace(array('_args_','_text_','_nav_'),$v,$model_nav);
   }
   $top_nav = str_ireplace("\n<li><a class=\"link actived\"","\n<li><a class=\"link\"",$top_nav);

   //左侧菜单
   $model_nav = "
         <ul id=\"sort__nav_\">
           <li>
             <dl>
               <dd>
                 <ol>
                   list_body
                 </ol>
               </dd>
             </dl>
           </li>
         </ul>\n";
   $left_nav = '';
   foreach ($array['left'] as $k=>$v) {
      $left_nav .= str_ireplace(array('_nav_'),array($v['nav']),$model_nav);
      $model_list = "<li nc_type='_pkey_'><a href=\"JavaScript:void(0);\" name=\"item__opact_\" id=\"item__opact_\" onclick=\"openItem('_args_');\">_text_</a></li>";
      $tmp_list = '';

      $current_parent = '';//当前父级key

      foreach ($v['list'] as $key=>$value) {
         $model_list_parent = '';
         $args = explode(',',$value['args']);
         if ($admin_array['admin_is_super'] != 1){
            if (!@in_array($args[1],$permission)){
            }
         }

         if (!empty($value['parent'])){
            if (empty($current_parent) || $current_parent != $value['parent']){
               $model_list_parent = "<li nc_type='parentli' dataparam='{$value['parent']}'><dt>{$value['parenttext']}</dt><dd style='display:block;'></dd></li>";
            }
            $current_parent = $value['parent'];
         }

         $value['op'] = $args[0];
         $value['act'] = $args[1];
         //str_ireplace()使用一个字符串替换字符串中的另一些字符,对大小写敏感的搜索  str_replace(find,replace,string,count)
         $tmp_list .= str_ireplace(array('_args_','_text_','_opact_','_pkey_'),array($value['args'],$value['text'],$value['op'].$value['act'],$value['parent']),$model_list_parent.$model_list);
      }

      $left_nav = str_replace('list_body',$tmp_list,$left_nav);

   }
}