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将 App Inventor 2 项目连接到外部传感器 · App Inventor 2 中文网
...e motors for use, the method “SetupMotors” must be called when the app starts and the screen is initialized. Here is an example of how simple the new blocks are to use:
Tutorials
A tutorial for using the blocks has can be found here
Ports, Wiring, and API
For reference, the front right mo...
C# Stream流使用总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...务器：
TcpListener lis=new TcpListener(5000); //服务器监听
lis.Start();//启动
Socket sock=lis.AcceptSocket();//阻塞，直到有客户端连接
NetworkStream networkStream = new NetworkStream(sock);//得到Socket中的流
if (netStream.DataAvailable) //如果客户端发送了...
\r\n, \r and \n what is the difference between them? [duplicate]
... is there an actual use of \r\n ? I don't see how a line feed cannot start from its beginning. got an example?
– alp
May 27 at 18:52
...
How to create GUID / UUID?
...(where he's only using 4 bits of the result and wasting the rest), you may start to wonder about performance. Indeed, joelpt even decided to toss out RFC for generic GUID speed with generateQuickGUID.
But, can we get speed and RFC compliance? I say, YES! Can we maintain readability? Well... No...
Undo git mv (rename)
...dentally renamed a large number of files and want to get back to where you started, delete all the renamed files that show up as adds under a git status call.
Once you delete all the changed files you can run git checkout -- * to get back the original file names locally.
...
Print list without brackets in a single row
...veBennett can you please explain the slicing [1:-1] in your answer. I just started learning python. Thank you.
– Charan
Aug 2 '15 at 7:03
3
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Good way of getting the user's location in Android
...at requests the periodic updates from the location providers:
public void startRecording() {
gpsTimer.cancel();
gpsTimer = new Timer();
long checkInterval = getGPSCheckMilliSecsFromPrefs();
long minDistance = getMinDistanceFromPrefs();
// receive updates
LocationManager loca...
What's the fundamental difference between MFC and ATL?
... evolved.
Because of this history, MFC:
Has a fairly clunky design. It started as a light wrapper around the Windows API, but grew. There are a bunch of little 'features' that had to be invented because the compiler and language just didn't support them. There were no templates, they invented ...
Button background as transparent
... Take a look at my clarified answer. I misread your problem to start. The background gets set in the style.
– Steve Pomeroy
Feb 10 '11 at 7:03
...
Word wrapping in phpstorm
...dent with a setting of 4 to make the wraps indented to match the line they started on.
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