// 查找所有父节点getAllParentArr(list, id) {  for (let i in list) {    if (list[i].id === id) {      //查问到返回该数组对象      return [list[i]];    }    if (list[i].children) {      let node = this.getAllParentArr(list[i].children, id);      if (node !== undefined) {        //查问到把父节点连起来        return node.concat(list[i]);      }    }  }},// 调用 let temptArr = [];temptArr = this.getAllParentArr(this.treeNodeList, id);// 参数1:树形数据,参数2:节点id