:bug: 取消消息的xml存储

app/studio/js/message.js

@@ -183,12 +183,11 @@ function msg_stop() {}
 function msg_read(msg_obj, status = null) {
   if (msg_obj) {
     if (status) {
-      var oldStatus = msg_obj.read;
+      let oldStatus = msg_obj.read;
       msg_obj.read = status;
-      var xMsg = gXmlBookDataMsg.getElementsByTagName("msg");
-      for (var i = 0; i < xMsg.length; i++) {
-        if (getNodeText(xMsg[i], "id") == msg_obj.id) {
-          setNodeText(xMsg[i], "read", status);
+      for (let i = 0; i < gDocMsgList.length; i++) {
+        if (gDocMsgList[i].id == msg_obj.id) {
+          gDocMsgList[i].read = status;
           break;
         }
       }