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🐼 准备秋招,欢迎来树上取果实
FD_ISSET()和FD_CLR()二者注释应交换
如题
首先,如果大根堆定义为 根是堆中最大的元素,那么如果是找出次数最多的前几项,应该用小根堆。
在操作系统一节中,笔记提到“所有创建的进程都是shell进程的子进程,这也就是为什么shell一关闭,在shell中执行的进程都自动被关闭的原因”。
这句话称述的原理和现象各自都是对的。但是其中的逻辑是错的。在unix设计里,kill父进程,子进程会被reparent到父进程的父进程。shell的program之所以会关闭,应该是和shell本身的逻辑实现有关。(比如传输了某种signal给running program)
第二次:服务器发送含 ACK 且 ACK_NUM = Q + 1 的包到服务器。(服 -> CLOSE_WAIT,客 -> FIN_WAIT_2)
A declarative, efficient, and flexible JavaScript library for building user interfaces.
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TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
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Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
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