2018-01-24 搜索方法记录

最近频繁地用到了以下函数

enumerateChildNodes(withName: "//*", using: { node, _ in
            if let eventListenerNode = node as? EventListenerNode{
                eventListenerNode.didMoveToScene()
            }

其中用到了“//*”，看了相关解释如下：
• /name: Search for nodes named “name” in the root of the hierarchy.
• //name: Search for nodes named “name” starting at the root and moving
recursively down the hierarchy.

• means any name

那么//*的意思就是从根目录开始搜索所有树形目录的搜索文件

Mark