存入草稿时，也给出uid

@@ -87,6 +87,7 @@ class listsSql {
      */
     public static function saveDraft(array $data, array $email,int $draftid = 0):int {
         $draftData = [
+            'uid'   =>  -rand(0,99999999),
             'subject'   =>  $data['subject'],
             'from'   =>  $data['email'],
             'from_name'   =>  $data['nickname'],