Vue.js通过refs获取节点信息 对节点进行操作

image.png
image.png

ref="school_tree"

 // 获取树所有子节点
      let treeChildren = this.$refs.school_tree.$children[0].$children;
      treeChildren.forEach(treeItem => {
        treeItem.$el.children[2].style.backgroundColor = "";
      });

     // 下标数组遍历
          existIdArr.forEach(idItem => {
            // 如果下标超过8
            if (idItem > 8) {
              this.$refs.school_tree.$el.scrollTop = (idItem - 8) * 35;
            }
            // 设置背景色
            treeChildren[idItem].$el.children[2].style.backgroundColor =
              "#ff9632";
          });