修改

src/components/TVWalls.vue

@@ -287,7 +287,8 @@ export default {
       this.data = val
       this.autoList = []
       this.stringList = []
-      for (let i = 1; i < data[0].treeLabels.length; i++) {
+      let length = data[0].treeLabels.length >= 4 ? 5 : data[0].treeLabels.length
+      for (let i = 1; i < length; i++) {
         this.autoList.push({"channelId": data[0].treeLabels[i].labelCode})
         this.stringList.push(data[0].treeLabels[i].labelCode)
       }