福哥答案2020-08-21:
福哥口诀法:阻非复信异(阻塞、非阻塞、多路复用、信号驱动、异步)
[知乎答案](https://www.zhihu.com/question/416128059)
操作系统上,分为 5 种:
1.阻塞IO(blocking IO)
2.非阻塞IO(non-blocking IO)
3.IO多路复用(IO multiplexing)
4.信号驱动IO(signal driven IO)
5.异步IO(Asynchronous IO)
Java语言,封装成为 3 种:
Java BIO
Java NIO
Java AIO
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