不是

https://www.nowcoder.com/feed/main/detail/4fcb3f369c724ba7b6ca58b84f70a7db

https://blog.51cto.com/u_16175513/6796844

• TreeMap是基于红黑树实现的，而ConcurrentSkipListMap是基于跳表实现的线程安全的key有序Map。

https://blog.csdn.net/u010013573/article/details/87482278