function send_mail($to, $subject, $body)
{
include FCPATH . APPPATH . 'libraries/smtp.php';
$smtpinfo = array();
$smtpinfo["host"] = "smtp.qq.com";
$smtpinfo["username"] = "******";
$smtpinfo["password"] = "******";
$smtpinfo["port"] = "25";
$from = $smtpinfo['username'];
$subject = '=?utf-8?B?' . base64_encode($subject) . '?=';
$smtpMail = new smtp($smtpinfo['host'], $smtpinfo['username'], $smtpinfo['password'], $smtpinfo['port']);
$smtpMail->setHeader('Content-Transfer-Encoding', '8bit');
$smtpMail->setFrom($from, '=?utf-8?B?' . base64_encode("酷Live网") . '?=');
$smtpMail->addTo($to);
$smtpMail->setSubject($subject);
$smtpMail->setBody($body);
@$smtpMail->send();
}