大约有 2,200 项符合查询结果(耗时:0.0139秒) [XML]

https://www.tsingfun.com/ilife/tech/310.html 

阿里的线下野心 - 资讯 - 清泛网 - 专注C/C++及内核技术

...让全国2万多家线下门店疯狂了。支付宝的当时统计数据显示,截至“双12”当天15时30分,共有超过400万笔交易集中爆发。虽然5折的促销活动中最高每笔仅有50元的减免,但依然挡不住汹涌的人流。在分析人士看来,支付宝此举...
https://www.tsingfun.com/it/tech/1214.html 

站长投放广告绝对不做的事:Google Adsense和百度联盟广告违规分析 - 更多技...

...: 三、1、禁止将联盟业务伪装为正文:通过改变代码显示颜色、大小,将搜索结果或推广内容伪装成为论坛帖子、新闻、下载链接等正文内容,也就是所谓的“与正文混排”。当然并不是说不允许你将广告放在文章内页当中...
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How can I sanitize user input with PHP?

...is a built-in FILTER_VALIDATE_EMAIL type My own filter class (uses JavaScript to highlight faulty fields) can be initiated by either an ajax request or normal form post. (see the example below) /** * Pork.FormValidator * Validates arrays or properties by setting up simple arrays. * Not...
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家政O2O百家争鸣后的卡位战:烧钱补贴并非良药 - 资讯 - 清泛网移动版 - 专...

...前后一个月更是会遭遇30%至50%的从业人员缺口。另有数据显示,今年国内家政服务市场总规模突破1万亿人民币。 人均消费能力以及生活质量需求的提升,直接导致了家政服务行业的火爆,其实早在2013年垂直于家政O2O领域的创...
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Detect iPad Mini in HTML5

Apple's iPad Mini is a smaller clone of the iPad 2 in more ways than we'd want. In JavaScript, the window.navigator object exposes the same values for the Mini and iPad 2. My tests so far to detect the difference have not lead to success. ...
https://www.tsingfun.com/it/cpp/1426.html 

C++静态和多态,亦敌亦友 - C/C++ - 清泛网 - 专注C/C++及内核技术

...者Ubuntu 12.04 + gcc 4.6.3的机器上,上述代码编译不能通过。显示如下信息: stawithvir.cpp:19:17: error: ‘static void DerivedAgain::foo()’ cannot be declared stawithvir.cpp:13:10: error: since ‘virtual void Derived::foo()’ declared in base class ...
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How are ssl certificates verified?

...ted certificate authority. The certificate contains the domain name and/or ip address of the web server. Your web browser confirms with the certificate authority that the address listed in the certificate is the one to which it has an open connection. Your web browser generates a shared symmetric k...
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UDP vs TCP, how much faster is it? [closed]

...dges a set of packets, calculated by using the TCP window size and round-trip time (RTT). For more information, I recommend the simple, but very comprehensible Skullbox explanation (TCP vs. UDP) share | ...
https://www.tsingfun.com/ilife/tech/997.html 

你不得不知道的6个用好大数据的秘诀 - 资讯 - 清泛网 - 专注C/C++及内核技术

...认为天气是预测交通状况的最重要因素。后来研究结果却显示,最影响那个地区交通状况的是当地学校的放学时间。当学生们放学时,堵车情况尤为严重。 Downs说,从一开始的假设来看,我们并没有预见到会得出这样的结论,...
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Cookies vs. sessions

...omes invalid. If it was all based on cookies, a user (or hacker) could manipulate their cookie data and then play requests to your site. Edit: I don't think there is any advantage to using cookies, other than simplicity. Look at it this way... Does the user have any reason to know their ID#? Ty...