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【BLE技术内幕】BLE技术揭秘 - 创客硬件开发 - 清泛IT论坛，有思想、有深度
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BLE技术揭秘
BLE是低功耗蓝牙的英文缩写（Bluetooth Low Energy），是蓝牙4.0版本起开始支持的新的、低功耗版本的蓝牙技术规范。蓝牙技术联盟（Bluetooth SIG）在2010年发布了跨...
Thread pooling in C++11
...r function with an infinite loop, constantly waiting for new tasks to grab and run.
Here is how to attach such function to the thread pool:
int Num_Threads = thread::hardware_concurrency();
vector<thread> Pool;
for(int ii = 0; ii < Num_Threads; ii++)
{ Pool.push_back(thread(Infinite_loop...
Why is early return slower than else?
...
This is a pure guess, and I haven't figured out an easy way to check whether it is right, but I have a theory for you.
I tried your code and get the same of results, without_else() is repeatedly slightly slower than with_else():
>>> T(l...
How to get text box value in JavaScript
...ms[0].elements[0].value;//by index
//word = a word from form input
var kodlandi = escape(word);//apply url encoding
alert(escape(word));
or
alert(kodlandi);
the problem you are not using encoding for input values from form
so
not browser adds ones to ...
ontop has some problems as unicode encod...
How to change the height of a ?
...
Add a content:" " attribute to that style and it works fine in Chrome
– anushr
Feb 14 '12 at 10:26
8
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How to check if a line is blank using regex
...e character class.
* is zero-or-more repetition of.
In multiline mode, ^ and $ also match the beginning and end of the line.
References:
regular-expressions.info/Anchors, Character Classes, and Repetition.
A non-regex alternative:
You can also check if a given string line is "blank" (i.e. ...
What ports does RabbitMQ use?
...olution of node names in a cluster. Nodes must be able to reach each other and the port mapper daemon for clustering to work.
PORT 35197
set by inet_dist_listen_min/max Firewalls must permit traffic in this range to pass between clustered nodes
RabbitMQ Management console:
PORT 15672 for RabbitM...
Remove all whitespace in a string
I want to eliminate all the whitespace from a string, on both ends, and in between words.
10 Answers
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Difference between IsNullOrEmpty and IsNullOrWhiteSpace in C# [duplicate]
What are differences between these commands in C#
8 Answers
8
...
lose vim colorscheme in tmux mode
I'm running iterm2 and when I'm in tmux mode the colorscheme I have set in vim does not show up. Only the color scheme I've set in iterm. If I run vim from shell the colorscheme appears correct - its only when I'm in tmux mode.
...