大约有 293 项符合查询结果(耗时:0.0097秒) [XML]

https://stackoverflow.com/ques... 

What do the terms “CPU bound” and “I/O bound” mean?

... 623.44 3.72 sha-test 555.56 227.27 2.44 zip-test 363.64 166.67 2.18 MARK RESULTS TABLE Mark Name MultiCore SingleCore Scaling -------------...
https://stackoverflow.com/ques... 

What is the difference between a URI, a URL and a URN?

.../download.zip mailto:user@example.com file:///home/user/file.txt tel:1-888-555-5555 http://example.com/resource?foo=bar#fragment /other/link.html (A relative URL, only useful in the context of another URL) URLs always start with a protocol (http) and usually contain information such as the network...
https://stackoverflow.com/ques... 

How do I profile memory usage in Python?

...py:537: 0.7 KiB self.update(*args, **kwds) #2: collections/__init__.py:555: 0.6 KiB return _heapq.nlargest(n, self.items(), key=_itemgetter(1)) #3: python3.6/heapq.py:569: 0.5 KiB result = [(key(elem), i, elem) for i, elem in zip(range(0, -n, -1), it)] 10 other: 2.2 KiB Total allocated s...
https://stackoverflow.com/ques... 

How do I style a dropdown with only CSS?

...r-radius: 2px; box-shadow: 0px 1px 3px rgba(0, 0, 0, 0.1); color: #555; font-size: inherit; margin: 0; overflow: hidden; padding-top: 2px; padding-bottom: 2px; text-overflow: ellipsis; white-space: nowrap; } When you run this code on any page within a WebKit-bas...
https://stackoverflow.com/ques... 

How can I prevent SQL injection in PHP?

... 555 As you can see, people suggest you use prepared statements at the most. It's not wrong, but wh...
https://www.tsingfun.com/it/tech/1318.html 

不同品牌的防火墙组成高可靠性集群 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...由表信息。 2、路由规则负责定义路由策略,它定义来源哪里的IP需要查询哪个路由表(使用别名)。路由规则的查看使用ip rule sh路由规则也从0开始编号,可以自由添 加,来源相同IP的路由规则选择根据规则编号的大小确定优...
https://stackoverflow.com/ques... 

Printing 1 to 1000 without loop or conditionals

...540\n541\n542\n543\n544\n545\n546\n547\n548\n549\n550\n551\n552\n553\n554\n555\n556\n557\n558\n559\n560\n561\n562\n563\n564\n565\n566\n567\n568\n569\n570\n571\n572\n573\n574\n575\n576\n577\n578\n579\n580\n581\n582\n583\n584\n585\n586\n587\n588\n589\n590\n591\n592\n593\n594\n595\n596\n597\n598\n599\n...
https://www.tsingfun.com/it/os... 

动态追踪(Dynamic Tracing)技术漫谈 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...一个例子是 Intel 公司的 IPP 这个程序库。IPP 针对 Intel 的芯片提供了很多常见算法的优化实现。我们也曾经尝试过在生产系统上面去使用基于 IPP 的 gzip 压缩库,但不幸的是我们遇到了问题—— IPP 会时不时的在线上崩溃。显然,...
https://www.tsingfun.com/it/tech/1406.html 

企业级负载平衡简介 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...对文章的正确性很有把握,但也仍需要仔细思考是否自己哪里没有说清楚。在这个思考过程中,我想起了一个非常值得一说的话题,那就是负载平衡。 在那篇文章中我们说到,要安全地管理好密码,计算密码哈希所使用的迭代...
https://stackoverflow.com/ques... 

What are the nuances of scope prototypal / prototypical inheritance in AngularJS?

...are also objects.) Suppose we then do this: childScope.anArray = [100, 555] childScope.anObject = { name: 'Mark', country: 'USA' } The prototype chain is not consulted, and child scope gets two new object properties that hide/shadow the parentScope object properties with the same names. Tak...