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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
...与通信，例如无线蓝牙键盘鼠标，无论是安卓或是iOS还是Windows，均是即插即用，这便是“标准”的力量。低功耗蓝牙支持的标准Profile有：HID，用于无线鼠标，键盘或其他遥控设备。BatteryServices，电池状态服务，用于告知电池电...
JavaScript and Threads
.../stackoverflow.com/a/16799132/2576706
function getScriptPath(foo){ return window.URL.createObjectURL(new Blob([foo.toString().match(/^\s*function\s*\(\s*\)\s*\{(([\s\S](?!\}$))*[\s\S])/)[1]],{type:'text/javascript'})); }
var MAX_VALUE = 10000;
/*
* Here are the workers
*/
//Worker 1
var...
Hand Coded GUI Versus Qt Designer GUI [closed]
...circle in the Connections inspector to the object in the Interface Builder window...') that would be simpler (for me) to understand in plain old code.
Good luck with Qt -- it's a great toolkit, however you use it, and Qt Creator looks like being a great IDE.
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Best ways to teach a beginner to program? [closed]
...nctionality. You can make a graphical calculator like the one bundled with Windows, or you can make an IRC client, or anything else.
XKCD describes Python's power a little better:
You can move to C# or Java after that, though they don't offer much that Python doesn't already have. The benefit of...
Synchronously waiting for an async operation, and why does Wait() freeze the program here
...e looking for? Browse other questions tagged c# .net task-parallel-library windows-store-apps async-await or ask your own question.
Add a dependency in Maven
...ependencies group 3. Copy/paste "Maven" tab dependency info from browser window (groupId, artifactId, version) into corresponding fields in "Select Dependency" popup in STS 4. Click OK 5. Save pom.xml Once saved, my maven directory on hard drive and maven dependency setting in STS is upda...
Convert a String In C++ To Upper Case
...y vectorized: 1.35s
See also this question about toupper() being slow on Windows when a locale is set.
I was shocked that Boost is an order of magnitude slower than the other options. I double-checked that I had -O3 enabled, and even single-stepped the asm to see what it was doing. It's almos...
Django connection to PostgreSQL: “Peer authentication failed”
... ‘localhost’ or ‘127.0.0.1’ (‘host’ lines in pg_hba.conf). On Windows,
you should always define HOST, as UNIX domain sockets are not
available.
If you want to keep using sockets, correct settings in pg_hba.conf are needed. The most simple is:
local all all ...
Why use static_cast(x) instead of (int)x?
...bout types, you can use reintrepret_cast. And to just throw const out the window there is const_cast.
They just make the code more explicit so that it looks like you know what you were doing.
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What is the best CSS Framework and are they worth the effort?
...king it impossible to create a liquid layout accessible on a wide range of window sizes.
It's backwards authoring, of use only for someone too scared to write a CSS rule.
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