修改tabbar选中图标！

components/tabbar/tabbar.js

     methods: {
         // 获取当前路由
         getChatRecordTable() {
-            this.setListDot(false);
             $request.get('/businessCommunicationDemand/getChatRecordTable.action').then(res => {
                 // console.log(res,'res');
                 if(res.status == 0){
                     })
                     if(sum > 0){
                         this.setListDot(true);
+                    }else{
+                        this.setListDot(false);
                     }
                 }
             }).catch(err=>{