取消订阅增加回调方法

src/plugins/MMCMQTT/store.js

@@ -116,13 +116,13 @@ export default {
      * @param {*} topic
      * @returns
      */
-    unsubscribe({ state }, { topic, deviceHardId }) {
+    unsubscribe({ state }, { topic, deviceHardId, callback }) {
       if (!topic) {
         return topic;
       }
       let { client } = state;
       if (client) {
-        client.unsubscribe(topic);
+        client.unsubscribe(topic, callback);
       }
       if (state.dataSet[deviceHardId]) {
         state.dataSet[deviceHardId] = undefined;