*//*以下头信息域可以省略
        $header .= "User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.13) Gecko/20080311 Firefox/2.0.0.13 ";
        $header .= "Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,q=0.5 ";
        $header .= "Accept-Language: en-us,en;q=0.5 ";
        $header .= "Accept-Encoding: gzip,deflate ";
         */

        $header .= "Connection:Close ";
   if(!empty($cookie))...{
                $_cookie = strval(NULL);
                foreach($cookie as $k => $v)...{
                        $_cookie .= $k."=".$v."; ";
                }
                $cookie_str =  "Cookie: " . base64_encode($_cookie) ." ";//传递Cookie
                $header .= $cookie_str;
        }
        if(!empty($post_data))...{
                $_post = strval(NULL);
                foreach($post_data as $k => $v)...{
                        $_post .= $k."=".$v."&";
                }
                $post_str  = "Content-Type: application/x-www-form-urlencoded ";//POST数据
                $post_str .= "Content-Length: ". strlen($_post) ." ";//POST数据的长度