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从网购到火车票，对比淘宝12306网为何如此烂？ - 大数据 & AI - 清泛网 - ...
...成功后进入订票，提交订票订单(查询流程暂不讨论)界面显示请等待
4)订票消息被发送至总线部件(接口可用webService、RMI、甚至自定义协议都可以)
5)总线收到订票消息、去Cache集群查询相关车次
6)Cache根据自身维护的车次余票表...
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...
MFC OnEraseBkgnd浅析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...窗口大小变化时，原来的背景没有被清除，造成图片重叠显示，你上面的代码没有问题，写在OnEraseBkgnd()中还是写在OnPaint()中的结果都是一样的，最主要的原因是，当我们改变窗口大小时，触发WM_SIZE消息，而默认的OnSize在内部调...
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...
国务院常务会议“大数据” - 资讯 - 清泛网 - 专注C/C++及内核技术
...，数据上也取得了明显的成效。国家统计局此前发布数据显示，今年上半年，全国新登记注册企业比上年同期增长近20%，注册资本(金)12万亿元，增长43%，全国平均每天新登记企业1万多户。
21次与科技创新相关
创业创新作为后...
Nginx no-www to www and www to no-www
...ix https:// and http://.
To check the nginx version, use nginx -v.
Strip www from url with nginx redirect
server {
server_name www.domain.com;
rewrite ^(.*) http://domain.com$1 permanent;
}
server {
server_name domain.com;
#The rest of your configuration goes here#
}
So yo...
常用Git命令汇总 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...么恢复呢？使用下面两个命令
git reflog show master | head #会显示所有的版本记录
git reset --hard $id #重新重置，至于--hard，请根据你时候将改变的内容放到工作区还是直接抛弃进行选择
#------------------------------------------
#恢复某次...
How to avoid isset() and empty()
...trim($array[$index])) > 0) {
return get_magic_quotes_gpc() ? stripslashes($value) : $value;
} else {
return $default;
}
}
which you can use as
$username = get_string($_POST, 'username');
Do the same for trivial stuff like get_number(), get_boolean(), get_array() and s...