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苹果全球开发者大会:无硬件 iOS 9等三大系统更新 - 资讯 - 清泛网 - 专注C...
...可或缺的一部分。
大会总结
苹果在做的是,用系统或软件充分调动每个零件的价值,不同硬件又联合起来创造更大价值。相比之下谷歌和微软只是在某点很酷。这次WWDC大会基本带来了大家想要的东西,至于硬件的更新我们需...
互联网数据造假盛行 浮夸风伤害创新经济 - 资讯 - 清泛网 - 专注C/C++及内核技术
...量的行为来增加用户量。通过技术模拟用户在使用他们的软件,而实际根本没有这个用户。这种行为在业界有个专有名词,叫‘刷榜’。 ”李东楼说。
据上海一位从事互联网金融行业的知情人士对时代周报记者介绍,“...
Working Soap client example
...ement simple SOAP clients in Java, you can use the SAAJ framework (it is shipped with JSE 1.6 and above):
SOAP with Attachments API for Java (SAAJ) is mainly used for dealing directly with SOAP Request/Response messages which happens behind the scenes in any Web Service API. It allows the develo...
可重入函数、不可重入函数及线程安全 - C/C++ - 清泛网 - 专注C/C++及内核技术
...点一般都是不可重入的 (浮点运算大多使用协处理器或者软件模拟来实现。
关于信号处理程序中调用不可重入函数的例子:
#include <stdlib.h>
#include <stdio.h>
#include <pwd.h>
static void func(int signo)
{
struct passwd *rootptr;
if( (...
MVC演化史 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...测试的。
从View中分离Controller就不那么重要了。Desktop软件的时代,View和Controller往往是一一对应的关系,所以常常把他们合并成为UI,事实上,当时多数UI框架都没有实现从View中分离Controller。后来随着Web的兴起,这种分离(模...
剖析程序的内存布局 - C/C++ - 清泛网 - 专注C/C++及内核技术
...拟地址被使能,那么它就会作用于这台机器上运行的所有软件,包括内核本身。因此一部分虚拟地址必须保留给内核使用:
这并不意味着内核使用了那么多的物理内存,仅表示它可支配这么大的地址空间,可根据...
How to find the operating system version using JavaScript?
How can I find the OS name and OS version using JavaScript?
13 Answers
13
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What's the difference between an inverted index and a plain old index?
... in order for the words to have meaning. If, as a culture, we decided to flip left and right, then you'd have the same issue figuring out what a "right turn" vs a "left turn" is since the agreed upon meaning had changed. However, the naming is arbitrary, so which one is which (in and of itself) does...
How many socket connections can a web server handle?
...th asynchronous in mind. You should use Promises at least, and when ECMAScript 7 comes along, async/await. C#/.Net already has full asynchronous support like node.js. Whatever the OS and platform, asynchronous should be expected to perform very well. And whatever language you choose, look for the ke...
Best approach to real time http streaming to HTML5 video client
...MP4 and I had to tune the FFMPEG parameters, and the standard node stream pipe redirection over http that I used originally was all that was needed.
In MP4 there is a 'fragmentation' option that breaks the mp4 into much smaller fragments which has its own index and makes the mp4 live streaming opti...