diff --git a/lib/index.d.ts b/lib/index.d.ts
index d2f97fe..826e1af 100644
--- a/lib/index.d.ts
+++ b/lib/index.d.ts
@@ -1,4 +1,4 @@
-/// <reference path="../global.d.ts" />
+/// <reference types="global" />
 export * as GraphicsExtras from '@pixi/graphics-extras';
 export * from './app';
 export * from './core';
diff --git a/lib/index.js b/lib/index.js
index eb896a9..fd225e5 100644
--- a/lib/index.js
+++ b/lib/index.js
@@ -5458,6 +5458,7 @@ class MqttMsgClient extends MessageClient {
                 this.emit('error', error);
             });
             this.cli.on('message', (topic, message) => {
+                console.debug('MQTT 收到消息', topic, message);
                 const handle = this.subMsgHandler.get(topic);
                 if (handle) {
                     if (this.options.protocol === 'json') {
@@ -5469,6 +5470,9 @@ class MqttMsgClient extends MessageClient {
                         handle(message);
                     }
                 }
+                else {
+                    console.warn('未找到订阅的消息处理器', topic);
+                }
             });
         }
         catch (err) {
@@ -5492,13 +5496,15 @@ class MqttMsgClient extends MessageClient {
     }
     unsubscribe0(destination) {
         console.debug('MQTT取消订阅执行', destination);
+        // 删除指定订阅的消息处理器
+        this.subMsgHandler.delete(destination);
+        // 通知服务器取消订阅
         this.cli.unsubscribe(destination, (error, packet) => {
             if (error) {
                 console.warn('MQTT 取消订阅失败', error);
             }
             else {
                 console.debug('MQTT 取消订阅成功', packet);
-                this.subMsgHandler.delete(destination);
             }
         });
     }
@@ -6852,6 +6858,9 @@ class GraphicSceneBase extends EventEmitter {
         this._dom = dom;
         this.pixi.resizeTo = dom;
         dom.appendChild(this.pixi.view);
+        // 绑定dom后，先调整视口
+        this.updateViewport(dom.clientWidth, dom.clientHeight);
+        // 监听dom大小变化
         this._viewportResizer = setInterval(() => {
             this.updateViewport(dom.clientWidth, dom.clientHeight);
         }, 1000);