How to set the node icon of Tree separately in the closed / open state

[mradxz]

http://www.jeasyui.com/demo-vue/main/index.php?plugin=Tree&theme=default&dir=ltr&pitem=&sort=asc

tree 的 node icon 在 closed / open 状态下怎么单独设置图标
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How to set the node icon of Tree separately in the closed / open state

[jarry]

Please override the following CSS styles.

Code:

<style>
  .tree-folder{
  }
  .tree-folder-open{
  }
</style>