if(isset($_COOKIE[$this->cookiename]))

                        {

                                       

                                setcookie($this->cookiename,$content,time()-3600,'/');

                                

                        }

           

                        if(setcookie($this->cookiename,$content,0,'/')){

                                

//die("写入成功");  

                                return true;

                        }

//die("写入失败");