public function public_about(){
   $sql= "SELECTc.catid,c.catname,c.catdir,FROM_BASE64(p.content) FROM v9_page p JOINv9_category c ON c.catid=p.catid WHERE c.parentdir = 'jmwm/'";
   if(isset($_REQUEST['biaoshi'])){
     $sql= "SELECTc.catid,c.catname,c.catdir,p.content FROM v9_page p JOIN v9_category c ONc.catid=p.catid WHERE c.catdir LIKE '{$_REQUEST['biaoshi']}%'";
   }
   $mydb= pc_base::load_model('mymodel');
   $mpages= $mydb->query_listinfo($sql);
   $this->array_to_base64($mpages);
  // $article['content']=base64_encode(toUtf8($article['content']));
   $msg= array();
   $msg['returncode']= "0";
   $msg['msg']= togbk("关于联系");
   $msg['comment']= $mpages;
   echo jsonFormat($msg);
// return_Msg(0,"关于联系",$mpages);
}
public function array_to_base64(&$array){
  foreach($array as $key => $value) {
    if(is_array($value)) {
      $this->array_to_base64($array[$key]);
    } elseif($key=="content"){
      $array[$key]=base64_encode(toUtf8($value));
    }else{
      $array[$key]=togbk($value);
    }
  }
}