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2026年9月4日签到记录贴 - 签到区 - 清泛IT社区，为创新赋能！
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TextEnhancer拓展 - 增强App中的文本格式 - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
About[size=15.008px]Introducing TextEnhancer, the ultimate extension for enhancing text formatting in your App Inventor projects! With TextEnhancer, you can effortlessly add advanced text features to your app, making it more dynamic and engaging for your users.Blocks[size=15.008px]SetTextJustificati...
财务计算器拓展：复利计算、平均值、中位数、众数、方差计算 - App Invento...
Financial Calculator Extension
精心打造的“财务计算器”扩展，为您的Android应用程序增添先进的财务和统计功能。此扩展让您能够执行广泛的财务计算，从简单利息和复利到净现值和投资回报率。它还使您能够进行基本的统计计算...
What GRANT USAGE ON SCHEMA exactly do?
...user, and they affected the "postgres" database. I thought that if you run psql without -d db you're operating "outside" any db, but you're always connected to a db and by default you're connected to the db with the same name of your role. db = role = user = group... it's a bit confusing :D
...
How to read a large file - line by line?
.... I use something like 1000+ partial files commonly. Doing these tricks helps immensely with processing speed and memory limits.
The pandas dataframe.read_csv is single threaded so you can do these tricks to make pandas quite faster by running a map() for parallel execution. You can use htop to ...
What is the difference D3 datum vs. data?
...nd datum within an array (["a"] in the example above).
Hopefully this helps clarify how selection.data and selection.datum() differ from each other both when providing data as an input argument and when querying for the bound datum by not providing any input arguments.
PS - The best way to unders...
Optional Parameters with C++ Macros
... <code for four arguments>
// The interim macro that simply strips the excess and ends up with the required macro
#define XXX_X(x,A,B,C,D,FUNC, ...) FUNC
// The macro that the programmer uses
#define XXX(...) XXX_X(,##__VA_ARGS__,\
...
What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
...andard library on Windows, but you can create a portable interface that wraps the standard library on other platforms and converts from UTF-8 to wchar_t directly before using Win32 W functions.
– bames53
Jun 25 '12 at 15:56
...
How can I get a count of the total number of digits in a number?
...;
sw1.Stop();
Console.WriteLine($"IfChain: {sw1.ElapsedMilliseconds} ms");
Stopwatch sw2 = new Stopwatch();
sw2.Start();
for (int i = 0; i < size; ++i) samples[i].Digits_Log10();
sw2.Stop();
Console.WriteLine($"L...