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阿里的线下野心 - 资讯 - 清泛网 - 专注C/C++及内核技术
...会进一步下降，经营压力减小。在品类上，此前电商依靠服装、电子产品等客单价较高、物流配送较方便的品类迅速拓展市场，随着规模扩大，电商必然向食品、生鲜等品类拓展，但这些客单价较低的品类并不是电商的优势。此...
剖析程序的内存布局 - C/C++ - 清泛网 - 专注C/C++及内核技术
...上图完全一致，这也给远程发掘程序安全漏洞打开了方便之门。一个发掘过程往往需要引用绝对内存地址：栈地址，库函数地址等。远程攻击者必须依赖地址空间布局的一致性，摸索着选择这些地址。如果让他们猜个正着，有人...
VR硬件行业洗牌进行时 70%创业公司倒闭转行做内容 - 资讯 - 清泛网 - 专注C...
...R硬件PC端的成本依旧不接地气，而这也将大多数消费者拒之门外。在现实生活中，记者发现，VR设备普及之前，国内的VR体验已经由线上转到了线下，首先兴起的就是VR体验店和VR主题公园。
在北京三里屯“乐翻天”体验店，体...
十年磨一“饼” 一个70后连续创业者的心路历程 - 资讯 - 清泛网 - 专注C/C+...
...商务的方式来销售自有品牌“cotton story”。由于我们没有服装行业的背景，低估了品牌建设的门槛，加上销售渠道仅依赖自建官网及线下直营店铺的重模式，在经历三年多的时间，公司亏损了100万美金后遗憾偃旗息鼓。此后的几...
.htaccess: Invalid command 'RewriteEngine', perhaps misspelled or defined by a module not included i
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or defined by a module not included in the server configuration
Check to make sure you have mod_rewrite enabled.
From: https://webdevdoor.com/php/mod_rewrite-windows-apache-url-rewriting
Find the httpd.conf file (usually you will find it i...
How to calculate a Mod b in Casio fx-991ES calculator
Does anyone know how to calculate a Mod b in Casio fx-991ES Calculator. Thanks
10 Answers
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Why are Where and Select outperforming just Select?
... same. I did quick research on my own, and here are the results:
Where -- mod: 1 result: 0, time: 371 ms
WhereSelect -- mod: 1 result: 0, time: 356 ms
Select -- mod: 1 result 0, time: 366 ms
Sum -- mod: 1 result: 0, time: 363 ms
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Where -- mod: 2 result: 4999999, time: 469 ms
WhereSe...
JavaScript % (modulo) gives a negative result for negative numbers
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Number.prototype.mod = function(n) {
return ((this%n)+n)%n;
};
Taken from this article: The JavaScript Modulo Bug
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How to check if mod_rewrite is enabled in php?
I was wondering if it is possible to check if mod_rewrite is enabled on Apache AND IIS in PHP .
15 Answers
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apache to tomcat: mod_jk vs mod_proxy
What are the advantages and disadvantages of using mod_jk and mod_proxy for fronting a tomcat instance with apache?
3 A...