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记录一些Mac OS X技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...X的鼠标加速度很诡异，缓慢移动鼠标时几乎很难移动。
下载Mouse Acceleration Preference Pane这个配置文件，安装后把Mouse加速度改成负值（如-6）就能关闭加速度。
增强触摸板
默认的触摸板设置并不好用，比如单击鼠标必须把触摸...
Setting DIV width and height in JavaScript
... Then please add it to your example, otherwise the script will fail - btw: Do you know the Firebug plugin for Firefox? This will help you a lot
– powerMicha
Apr 12 '12 at 9:23
...
How to check if hex color is “too black”?
...xtract blue
var luma = 0.2126 * r + 0.7152 * g + 0.0722 * b; // per ITU-R BT.709
if (luma < 40) {
// pick a different colour
}
EDIT
Since May 2014 tinycolor now has a getBrightness() function, albeit using the CCIR601 weighting factors instead of the ITU-R ones above.
EDIT
The resultin...
How to prevent favicon.ico requests?
...
@BT the server or the browser? :D
– Ionuț G. Stan
Jul 4 at 17:02
...
linux下iptables配置详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...TING -i eth0 -s 192.168.0.0/16 -j DROP
如果我们想,比如阻止MSN,QQ,BT等的话,需要找到它们所用的端口或者IP,(个人认为没有太大必要)
例：
禁止与211.101.46.253的所有连接
[root@tp ~]# iptables -t nat -A PREROUTING -d 211.101.46.253 -j DROP
禁用FT...
Printing all global variables/local variables?
...es of a calling function use select-frame before info locals
E.g.:
(gdb) bt
#0 0xfec3c0b5 in _lwp_kill () from /lib/libc.so.1
#1 0xfec36f39 in thr_kill () from /lib/libc.so.1
#2 0xfebe3603 in raise () from /lib/libc.so.1
#3 0xfebc2961 in abort () from /lib/libc.so.1
#4 0xfebc2bef in _assert_c...
Uber5岁了，一次性告诉你它的商业之道 - 资讯 - 清泛网 - 专注C/C++及内核技术
...供流媒体交换下载的服务平台，网友之间可以交换音乐和电影视频。
或许只是偶然，这个网站从一诞生就触犯了美国版权保护法。1999年，Sour被30多家音乐、影视出版巨头联合起诉，索赔2500亿美元。Sour宣布破产。那时，卡兰尼...
How can I reverse a NSArray in Objective-C?
...
For obtaining a reversed copy of an array, look at danielpunkass' solution using reverseObjectEnumerator.
For reversing a mutable array, you can add the following category to your code:
@implementation NSMutableArray (Reverse)
...
How to get IP address of the device from code?
... The code only return first IP, a phone may have celluar, WIFI and BT address at same time
– reker
Jun 14 '18 at 8:04
...
Advantage of switch over if-else statement
...ate the same code as a if-else chain, so you don't lose anything. If in doubt put the most common cases first into the switch statement.
In the best case the optimizer may find a better way to generate the code. Common things a compiler does is to build a binary decision tree (saves compares and ju...