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How can I convert a std::string to int?
...4614/195527 : it will convert "11x" to integer 11.
– CC.
Jul 17 '15 at 20:37
5
#include <stdli...
Understanding colors on Android (six characters)
...
Hex Opacity Values
100% — FF
95% — F2
90% — E6
85% — D9
80% — CC
75% — BF
70% — B3
65% — A6
60% — 99
55% — 8C
50% — 80
45% — 73
40% — 66
35% — 59
30% — 4D
25% — 40
20% — 33
15% — 26
10% — 1A
5% — 0D
0% — 00
...
Test whether a glob has any matches in bash
...e are specified by POSIX), and it's faster than ls -d glob* (the previous accepted answer) becasue it stops when it reaches the first match.
– Ken Bloom
Nov 24 '10 at 14:54
...
数据挖掘——分词入门 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...什么是数据呢？比如大家要上网首先需要输入网址，打开网页后会自动判断哪些是图片、哪些是新闻、哪些是用户名称、游戏图标等。人大脑可以存储大量的信息，包括文字、声音、视频、图片等，每一个都可以转换数据存储在...
INotifyPropertyChanged vs. DependencyProperty in ViewModel
...hCode() methods
A DependencyObject has thread affinity – it can only be accessed
on the thread on which it was
created
I prefer the POCO approach. A base class for PresentationModel (aka ViewModel) which implements INotifyPropertyChanged interface can be found here: http://compositeextensions.co...
libevent对比libev的基准测试 - C/C++ - 清泛网 - 专注C/C++及内核技术
...接收数据。
使用的基准程序是bench.c，取自 libevent 发行版，经过修改以收集每次测试迭代的总时间，可选择启用事件观察器的超时以及可选择使用本机 libev API 并以不同方式输出时间。
对于 libevent，使用版本 1.4.3，而对于 libev...
How to position one element relative to another with jQuery?
...rent,
var pos = $(this).position();
// .outerWidth() takes into account border and padding.
var width = $(this).outerWidth();
//show the menu directly over the placeholder
$("#menu").css({
position: "absolute",
top: pos.top + "px",
left: (pos.left + wid...
Center image horizontally within a div
...
margin:auto;
}
Here's my solution in: http://jsfiddle.net/marvo/3k3CC/2/
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What is the iBeacon Bluetooth Profile
...52 ab 8d 38 a5
This packet can be broken down as follows:
d6 be 89 8e # Access address for advertising data (this is always the same fixed value)
40 # Advertising Channel PDU Header byte 0. Contains: (type = 0), (tx add = 1), (rx add = 0)
24 # Advertising Channel PDU Header byte 1. Contains: (l...
iOS开发过程中的各种tips - 更多技术 - 清泛网 - 专注C/C++及内核技术
...tion sharedApplication] openURL:url];
14.利用UIWebView显示pdf文件，网页等等
<UIWebViewDelegate>
UIWebView *webView = [[UIWebView alloc]initWithFrame:self.view.bounds];
webView.delegate = self;
webView.scalesPageToFit = YES;
webView.autoresizingMask = UIViewAutoresizingFlexibleWi...