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周鸿祎创业以来的“六大战役” 酷派会是最后一战 - 资讯 - 清泛网 - 专注C/...

...,导致了最终一拍两散。对于其中内幕,网上流传着各种版本,各执一词。不过通过梳理一遍,我相信错误是一半一半的。 2005年傅盛加入360,带领团队打造360安全卫士,而此时的周鸿祎依旧醉心于他的搜索,而结果就是,周鸿...
https://www.tsingfun.com/it/os_kernel/599.html 

逆向工程——二进制炸弹(CSAPP Project) - 操作系统(内核) - 清泛网 - 专注...

...,只不过稍微分支多了点。可以写出如下的C代码的递归版本: int fun7(const int *a, int b) { if (a == NULL) return -1; int ret = 0; if (*a - b > 0) { ret = fun7(*(a + 4), b); ret *= 2 } else if (*a - b == 0...
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Referring to the null object in Python

...ot even as a class attribute or in the confines of a function. # In Python 2.7 >>> class SomeClass(object): ... def my_fnc(self): ... self.None = 'foo' SyntaxError: cannot assign to None >>> def my_fnc(): None = 'foo' SyntaxError: cannot assign to None # In...
https://www.tsingfun.com/it/cpp/1385.html 

高并发服务端分布式系统设计概要 - C/C++ - 清泛网 - 专注C/C++及内核技术

...还未更新此数据)的数据通常并不会带来大问题,比如,我在“山推”上发了一个推文,“关注我的人”并没有即时同步地看到我的最新推文,并没有太大影响,只要“稍后”它们能看到最新的数据即可,这就是所谓的最终一致...
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In Python, how do I determine if an object is iterable?

...pproach: from collections.abc import Iterable # drop `.abc` with Python 2.7 or lower def iterable(obj): return isinstance(obj, Iterable) The above has been recommended already earlier, but the general consensus has been that using iter() would be better: def iterable(obj): try: ...
https://www.tsingfun.com/it/tech/738.html 

TCP 的那些事儿(上) - 更多技术 - 清泛网 - 专注C/C++及内核技术

... 数据传输中的Sequence Number 下图是我从Wireshark中截了个我在访问coolshell.cn时的有数据传输的图给你看一下,SeqNum是怎么变的。(使用Wireshark菜单中的Statistics ->Flow Graph… ) 你可以看到,SeqNum的增加是和传输的字节数相关...
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Asking the user for input until they give a valid response

...ses the likelihood of bugs in your system. What if you want to backport to 2.7 by changing input to raw_input, but accidentally change only the first input above? It's a SyntaxError just waiting to happen. Recursion Will Blow Your Stack If you've just learned about recursion, you might be tempted ...
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Is the Scala 2.8 collections library a case of “the longest suicide note in history”? [closed]

...coming in the imminent 2.8 release. Those familiar with the library from 2.7 will notice that the library, from a usage perspective, has changed little. For example... ...
https://www.tsingfun.com/it/cpp/1279.html 

了解 Boost Filesystem Library - C/C++ - 清泛网 - 专注C/C++及内核技术

... C++ 接口,用于执行文件系统操作。可以从 Boost 站点免费下载此库。 使用 boost::filesystem 的第一个程序 在深入研究 Boost Filesystem Library 的更多细节之前,请看一下清单 1 中所示的代码;此代码使用 Boost API 确定某个文件的类型是...
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Lua简明教程 - 脚本技术 - 清泛IT论坛,有思想、有深度

...lua学习教程lua参考手册Lua参考手册的中文翻译(云风翻译版本) 关于Lua的标库,你可以看看官方文档:string,  table, math, io, os。(全文完) 文章转自: 酷 壳 – CoolShell.cn