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有没有关于CRC校验的扩展？ - App Inventor 2 拓展 - 清泛IT社区，为创新赋能！
...再上传{:8_384:}参考：https://community.appinventor.mit.edu/t/can-someone-help-me-reproduce-this-code-using-the-blocks/60372/15CRC16 算法有多种，本扩展以 ASCII 格式接收数据并以 CRC16/CCITT-FALSE 格式给出结果。在线计算CRC网站：https://crccalc.com/
How to change the output color of echo in Linux
... "I ${RED}love${NC} Stack Overflow\n"
which prints love in red.
From @james-lim's comment, if you are using the echo command, be sure to use the -e flag to allow backslash escapes.
# Continued from above example
echo -e "I ${RED}love${NC} Stack Overflow"
(don't add "\n" when using echo unless ...
Can I list-initialize a vector of move-only type?
...psis of <initializer_list> in 18.9 makes it reasonably clear that elements of an initializer list are always passed via const-reference. Unfortunately, there does not appear to be any way of using move-semantic in initializer list elements in the current revision of the language.
Specifically...
Best Practice for Exception Handling in a Windows Forms Application?
...mple as wrapping Main() in a try/catch, failing fast with a graceful error message to the user. This is the "last resort" exception handler.
Preemptive checks are always correct if feasible, but not always perfect. For example, between the code where you check for a file's existence and the next li...
Getting the IP address of the current machine using Java
...rent nodes that are run on different system or on different ports on the same system.
17 Answers
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Getting random numbers in Java [duplicate]
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@DanielF 's confusion is understandable because the comment in the answer is misleading. The 50 in rand.nextInt(50) will only give the maximum in this situation. rand.nextInt(50) will return an integer between 0 (inclusively) and 50 (exclusively) (in other words [0-49]). We add ...
AWS ssh access 'Permission denied (publickey)' issue [closed]
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And some Ubuntu images seem to have the "ubuntu" user only. (Which can sudo to root.)
– Prof. Falken
Apr 26 '12 at 8:50
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When is a language considered a scripting language? [closed]
What makes a language a scripting language? I've heard some people say "when it gets interpreted instead of compiled". That would make PHP (for example) a scripting language. Is that the only criterion? Or are there other criteria?
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deciding among subprocess, multiprocessing, and thread in Python?
...formation but it is imperative that I know when the threads finish since some steps of my pipeline depend on their output.
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When should I use OWIN Katana?
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In asp.net WebApi v2, the OWIN pipeline becomes the default. It is eventually going to be the standard pipeline under any asp.net project.
I cannot put it better than what is written here : http://www.asp.net/aspnet/overview/owin-and-katana/an-overview-of-project-kata...