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cpuid汇编指令 - C/C++ - 清泛网 - 专注C/C++及内核技术
...一组返回的是基本信息，另一组返回的是扩展信息。
1、如何判断CPU是否支持CPUID指令
前面说过，大概是从80486开始才有的cpuid这个指令，是不是所有的80486家族CPU都有这个指令我也不是很清楚，但在EFLAGS中的bit 21可以识别CPU...
Get the distance between two geo points
...rectangular projection), much faster (it requires only 1 trig and 1 square root).
This approximation is relevant if your points are not too far apart. It will always over-estimate compared to the real haversine distance. For example it will add no more than 0.05382 % to the real distance if the del...
扒皮美女创业者：15分钟拿下薛蛮子 7家风投追捧 - 资讯 - 清泛网 - 专注C/C...
...你喽。
最后，这篇文章的高潮来了。这个小姑娘是如何拿到Pre-A轮的千万投资的呢？
你没看错，仅仅15分钟！薛蛮子老师唠了唠嗑，拍了拍小姑娘的脑袋，就马上打款啦！So easy！
小姑娘的网站长啥样我不知道，用PC端真...
How to list all the files in a commit?
... It should be noted that diff-tree won't work when looking at the root commit.
– jbranchaud
Mar 6 '13 at 5:52
332
...
Similar to jQuery .closest() but traversing descendants?
...
Pure JS solution (using ES6).
export function closestDescendant(root, selector) {
const elements = [root];
let e;
do { e = elements.shift(); } while (!e.matches(selector) && elements.push(...e.children));
return e.matches(selector) ? e : null;
}
Example
Considering th...
How can I get the MAC and the IP address of a connected client in PHP?
...you need to do is to put arp into diferrent group.
Default:
-rwxr-xr-x 1 root root 48K 2008-11-11 18:11 /usr/sbin/arp*
With command:
sudo chown root:www-data /usr/sbin/arp
you will get:
-rwxr-xr-x 1 root www-data 48K 2008-11-11 18:11 /usr/sbin/arp*
And because apache is a daemon running un...
How to generate sample XML documents from their DTD or XSD?
...ut when I try to do it, it is not working for me and it says please define root node but than it does not allow me to do so. So if anyone had worked with oxygenXML do suggest of what could be way around for this ?
– Rachel
Oct 21 '09 at 21:41
...
Error: No default engine was specified and no extension was provided
...plate engine name
* - `engines` template engine require() cache
* - `root` root path for view lookup
*
* @param {String} name
* @param {Object} options
* @api private
*/
function View(name, options) {
options = options || {};
this.name = name;
this.root = options.root;
var engine...
Google Tag Manager 入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...用Tag Manager之前，我们先看看没有这个工具之前，我们是如何管理Tag脚本的。
Step 1：
按照Google Analytics的配置要求，我们把如下的脚本放到网站全局的页脚，如：footer.inc：
<script type=”text/javascript”>
var _gaq = _gaq || [];
_gaq....
Using Sinatra for larger projects via multiple files
...rb
main.rb
views/
layout.haml
login.haml
main.haml
config.ru
root = ::File.dirname(__FILE__)
require ::File.join( root, 'app' )
run MyApp.new
app.rb
# encoding: utf-8
require 'sinatra'
require 'haml'
class MyApp < Sinatra::Application
enable :sessions
configure :producti...