优化

@@ -233,6 +233,7 @@ class Msg extends Request{
      * @time 2024/9/24 9:51
      */
     public function setFlags(string $flag, bool $unset = false):bool {
+        $this->folder->exec();
         // FLAGS.SILENT 和 FLAGS 前者不返回新的标签 后者返回新的标签列表
         // UID STORE 1 +FLAGS (\Seen) 这个是添加为已读
         // UID STORE 1 -FLAGS (\Seen) 这个是标记为未读
@@ -371,6 +372,7 @@ class Msg extends Request{
      * @time 2024/9/24 10:47
      */
     public function move(string $folder, bool $utf7 = true):bool {
+        $this->folder->exec();
         if(!$utf7) $folder = mb_iconv($folder,"UTF7-IMAP","UTF-8");
 //        "UID MOVE {$uids} \"{$folder}\""
         $this->cmd('%s MOVE %s "%s"',
@@ -391,6 +393,7 @@ class Msg extends Request{
      * @time 2024/9/24 10:51
      */
     public function copy(string $folder, bool $utf7 = true):bool {
+        $this->folder->exec();
         if(!$utf7) $folder = mb_iconv($folder,"UTF7-IMAP","UTF-8");
 //        "UID COPY {$uids} \"{$folder}\""
         $this->cmd('%s COPY %s "%s"',