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高级IO提纲
2022-07-27 05:52:00 【Lee Neo】

阻塞:死心眼,
非阻塞:尝试着去做;
优缺点:
优点:
阻塞是将程序挂起,交出cpu资源,因此CPU的占用率很低;
缺点:
阻塞IO无法实现单线程的并发读取,



- 非阻塞相对于阻塞就是不在死等,这里主要补充了有限状态机编程,适用于复杂流程,优势是不怕甲方该需求;
- IO多路转接,至少掌握两个函数;
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