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Using parameters in batch files at Windows command line
...unched from (very useful!) you can use
ECHO %~dp0
You can view the full range of these capabilities by typing CALL /? in the command prompt.
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Web API 最佳入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...is a framework that makes it easy to build HTTPservices that reach a broad range of clients, including browsers and mobile devices. ASP.NET Web API is an ideal platform for building RESTful applications on the .NET Framework.
Web API在ASP.NET完整框架中地位如下图，与SignalR一起同...
Why do we check up to the square root of a prime number to determine if it is prime?
... is smaller.
Now, if you could not find any divisor of N belonging in the range [2, sqrt(N)], what does that mean?
This means that N does not have any divisor in [2, a] as a <= sqrt(N).
Therefore, a = 1 and b = n and hence By definition, N is prime.
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Further reading if you are not satisf...
What are the correct version numbers for C#?
... new features: nullable reference-types, Asynchronous streams, Indices and Ranges, Readonly members, using declarations,default interface methods, Static local functions and Enhancement of interpolated verbatim strings.
C# 9.0 still in preview. Expected to be released in November of 2020 along with ...
How do I get user IP address in django?
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The address ranges assigned for private networks are: 172.16.0.0–172.31.255.255 (16 “class B” networks), 192.168.0.0–192.168.255.255 (1 “class B” network) and 10.0.0.0–10.255.255.255 (1 “class A” or 256 “class B” ne...
Delete specific line number(s) from a text file using sed?
...command>; where <address> can be either a single line like 5 or a range of lines like 5,10, and the command d deletes the given line or lines. The addresses can also be regular expressions, or the dollar sign $ indicating the last line of the file.
– Brian Campbell
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Git - Undo pushed commits
... that specific commit, and not commits after that. If you want to revert a range of commits, you can do it like this:
git revert <oldest_commit_hash>..<latest_commit_hash>
It reverts the commits between and including the specified commits.
Look at the git-revert man page for more inf...
UnicodeDecodeError: 'ascii' codec can't decode byte 0xef in position 1
...ror: 'ascii' codec can't encode characters in position 1-5: ordinal not in range(128)
>>>
Consult the docs for your linux variant to discover how to make this change permanent.
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What is the ideal data type to use when storing latitude / longitude in a MySQL database?
...ause problems
The point is that when using degrees or radians we know the range of the values - and the fractional part needs the most digits.
The MySQL Spatial Extensions are a good alternative because they follow The OpenGIS Geometry Model. I didn't use them because I needed to keep my database ...
Get parts of a NSURL in objective-c
...le.com:8080/some/path/file.html;params-here?foo=bar#baz
NSURL has a wide range of accessors. You may check them in the documentation for the NSURL class, section Accessing the Parts of the URL. For quick reference:
-[NSURL scheme] = http
-[NSURL resourceSpecifier] = (everything from // to the en...