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大数据不是万能的 - 资讯 - 清泛网 - 专注C/C++及内核技术

...地方。我们认为,大数据其实面对的不是99%的机构面对的问题,这个说法跟市场上很多的说法不大一样。 我们看一下,把这个额度分配到一万到十万区域。在这个领域从事信贷服务的,大家马上想到的是信用卡,也可能想到某...
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一文讲透区块链技术原理 - 资讯 - 清泛网 - 专注C/C++及内核技术

...定是可信的。 区块链技术原理的来源可归纳为一个数学问题:拜占庭将军问题。拜占庭将军问题延伸到互联网生活中来,其内涵可概括为:在互联网大背景下,当需要与不熟悉的对手方进行价值交换活动时,人们如何才能防止...
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AsciiConversion 拓展问题:字母开头的会出现“C2”非预期字符 - App Inven...

做TCP通讯时遇到的问题,主要问题是:列表如果是字母开头就会出问题 发送这个列表 字母开头的都有这个问题,文本显示没有问题。 上面那个是程序 ,下面这个是测试工具 测试了一下: 1、ClientSocket拓展默认...
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深入浅出计算机字符集编码 - C/C++ - 清泛网 - 专注C/C++及内核技术

...入浅出计算机字符集编码通过解决一个实际工作中的编码问题,深入研究调查了下计算机的字符编码原理,掌握编码的基本原理后,相关的问题都可轻松解决,希望能给大家带来一定帮助。问题缘由:前面页面编码方式统一为UTF...
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Best way to give a variable a default value (simulate Perl ||, ||= )

... In PHP 7 we finally have a way to do this elegantly. It is called the Null coalescing operator. You can use it like this: $name = $_GET['name'] ?? 'john doe'; This is equivalent to $name = isset($_GET['name']) ? $_GET['name'...
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Reference: mod_rewrite, URL rewriting and “pretty links” explained

...ile /var/www/foo/bar.html exists and serve it if so. If the file ends in ".php" it will invoke the PHP interpreter and then return the result. All this association is completely configurable; a file doesn't have to end in ".php" for the web server to run it through the PHP interpreter, and the URL d...
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MySQL主从服务器数据一致性的核对与修复 - 数据库(内核) - 清泛网 - 专注C/...

...性的核对与修复我上一次遇到MySQL主从服务器数据一致性问题,想想是几年前的事情了,还依稀记得当时惊慌失措的情景,好在最后借助Maatkit解决了问题。几年...我上一次遇到MySQL主从服务器数据一致性问题,想想是几年前的事...
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Checking if form has been submitted - PHP

... type="submit" name="treasure" value="go!"> </form> Then in the PHP handler: if (isset($_POST['treasure'])){ echo "treasure will be set if the form has been submitted (to TRUE, I believe)"; } share | ...
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Can I get CONST's defined on a PHP class?

... are doing this a lot you may want to looking at caching the result. <?php class Profile { const LABEL_FIRST_NAME = "First Name"; const LABEL_LAST_NAME = "Last Name"; const LABEL_COMPANY_NAME = "Company"; } $refl = new ReflectionClass('Profile'); print_r($refl->getConstants()); ...
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Simplest way to detect a mobile device in PHP

...est way to tell if a user is using a mobile device to browse my site using PHP? 15 Answers ...