static function getSignature($token, $timestamp, $nonce)
{
//排序
try {
$array = array($token, $timestamp, $nonce);
sort($array, SORT_STRING);
$str = implode($array);
return sha1($str);
} catch (\Exception $e) {
@error_log('getSignature Error: ' . $e->getMessage(), 0);
return FALSE;
}
}