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正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...尾。这两个代码在验证输入的内容时非常有用，比如一个网站如果要求你填写的QQ号必须为5位到12位数字时，可以使用：^\d{5,12}$。
这里的{5,12}和前面介绍过的{2}是类似的，只不过{2}匹配只能不多不少重复2次，{5,12}则是重复的次...
Convert php array to Javascript
... 7 => 'AS1234',
8 => 'MH9Z2324',
9 => 'MX1234',
10 => 'TN1A3242',
11 => 'ZZ1234'
)
?>
<script type="text/javascript">
var jArray= <?php echo json_encode($phpArray ); ?>;
for(var i=0;i<12;i++){
a...
ros 基本调试 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...输出到屏幕
将freeldr.ini修改为如下形式，使之含有一个入口。
——————————————————————————————————
[ReactOS_Debug]
BootType=ReactOS
SystemPath=multi(0)disk(0)rdisk(0)partition(1)\ReactOS
Options=/DEBUG /DEBUG...
tcp加速技术解决方案 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
...版本内核发行版使用systemd管理服务，不容易降级)
根据官方报告，跟原生centos-6.5相比，提升260%-620%(24核以上)
Fastsocket架构
上图可以很清楚的看到， 它也是利用本文前述的技术原理和多核优化原则。
通过在网卡多队列RS...
How to use gradle zip in local system without downloading when using gradle-wrapper
... edited Nov 19 '17 at 20:22
mx0
4,2021010 gold badges3838 silver badges4545 bronze badges
answered Mar 14 '16 at 2:52
...
ISO time (ISO 8601) in Python
...)
datetime.datetime(2010, 6, 4, 21, 8, 12)
The most robust is the Egenix mxDateTime module:
>>> from mx.DateTime.ISO import ParseDateTimeUTC
>>> from datetime import datetime
>>> x = ParseDateTimeUTC("2010-06-04 21:08:12")
>>> datetime.fromtimestamp(x)
datetime...
ListCtrl 重绘（Custom Draw） - C/C++ - 清泛网 - 专注C/C++及内核技术
...这个ListCtrl处于Report和多列模式。
Custom Draw 的消息映射入口
Custom draw 是一个类似于回调的处理过程，Windows在绘制List Ctrl的某个时间点上通过 Notification 消息通知你的程序，你可以选择忽略所有的通知（这样你就会看到标准的Lis...
How can I get around MySQL Errcode 13 with SELECT INTO OUTFILE?
...buntu-linux-howto-disable-apparmor-commands
– silver_mx
Jun 27 '17 at 9:36
add a comment
...
How to tell whether a point is to the right or left side of a line
...simplify it to slope-intercept form (not necessary in your algorithm): y = mx+b.
Now plug in (x3, y3) for x and y. Here is some pseudocode detailing what should happen:
if m > 0
if y3 > m*x3 + b
it's on the left
else if y3 < m*x3 + b
it's on the right
else
it's on the l...
Converting a Uniform Distribution to a Normal Distribution
...s undesirable property is also shared by the inverse CDF method. See cimat.mx/~src/prope08/randomgauss.pdf . This can be alleviated by using a uniform RNG which has non zero probability to yield a floating point number very close to zero. Most RNG do not, since they generate a (typically 64 bit) int...