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micro:bit 微控制器教程 · App Inventor 2 中文网
...理温度数据
when BluetoothLE1.TemperatureReceived temperature
do
set Label_Temperature.Text to "温度: " & temperature & "°C"
3. 双向通信
实现手机与 micro:bit 的双向数据交换：
// micro:bit 端发送状态到手机
// 手机端处理自定义数...
SVN command to delete all locally missing files
...outputs of the following commands to svn rm for all missing files. You can set the current working directory to the appropriate directory or subdirectory before running these - dependent on whether you want to run this your entire working copy, or only a subset.
Run an svn status
Search for lines ...
How do Trigonometric functions work?
... of something, you hit the sin or cos button on your calculator and you're set. Which is fine.
7 Answers
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Reset local repository branch to be just like remote repository HEAD
How do I reset my local branch to be just like the branch on the remote repository?
21 Answers
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How do I assign an alias to a function name in C++?
...
Excellent, how about C++98? I have a class w/2 "reset" overloads used to set & reset. Internally, no problem. For external users I wanted to alias as "set" so it's intuitive for context (set a default-constructed, clear()'d etc.; reset working object). Class methods: (1...
What are the most common non-BMP Unicode characters in actual use? [closed]
..., ranges outside the BMP (Basic Multilingual Plane) are the most common so far? These are the ones which require 4 bytes in UTF-8 or surrogates in UTF-16.
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Is there a function in python to split a word into a list? [duplicate]
Is there a function in python to split a word into a list of single letters? e.g:
7 Answers
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How can I remove the extension of a filename in a shell script?
What's wrong with the following code?
12 Answers
12
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List of Big-O for PHP functions
...sts at N=1 and N=1,000,000 is ~50% time increase.
Interesting Points:
isset/array_key_exists is much faster than in_array and array_search
+(union) is a bit faster than array_merge (and looks nicer). But it does work differently so keep that in mind.
shuffle is on the same Big-O tier as array_ran...
What is dynamic programming? [closed]
... a lot in string problems, such as the string edit problem. You solve a subset(s) of the problem and then use that information to solve the more difficult original problem.
With dynamic programming, you store your results in some sort of table generally. When you need the answer to a problem, you r...