如果根就是插入的值，那么根的siz少了1啊
by messuarez @ 2019-02-22 16:11:16
@[messuarez](/space/show?uid=44278) 懂了,谢谢
by zjgmartin @ 2019-03-26 15:00:07
谢大佬！！
by ILoLy @ 2019-03-27 08:44:07