https://blog.csdn.net/qq_34817440/article/details/96482818
this.$set(this.$refs.tableDom.store.states.lazyTreeNodeMap, id, []);
Vue+Element中Table懒加载，新增、删除操作后手动更新
原文：https://www.cnblogs.com/zhaoyun4122/p/12134174.html
