{"path":"1665614","ref":"CleanTree.md","title":"Clean Tree","content":"![](http:\/\/www.rhinostudio.cn\/files\/course\/2019\/03-04\/2232171cff79242031.png)\n\n## **Clean Tree**\n\n根据你设定的布尔值来删除数据结构中的空集或Nulls值或非法值。"}