大约有 35,000 项符合查询结果（耗时：0.0623秒） [XML]
Most efficient way to reverse a numpy array
...nt code, the repetitive operation of numpy array reversion ate a giant chunk of the running time. What I have right now is the common view-based method:
...
How to decide when to use Node.js?
I am new to this kind of stuff, but lately I've been hearing a lot about how good Node.js is. Considering how much I love working with jQuery and JavaScript in general, I can't help but wonder how to decide when to use Node.js. The web application I have in mind is something like Bitly - takes s...
Should I learn C before learning C++? [closed]
.... One was particularly good - a sort of FPS asteroids game. I decided to take a peek in the src directory to find it was done in C++ (most of the other projects were Java 3D apps).
...
View the change history of a file using Git versioning
...
For this I'd use:
gitk [filename]
or to follow filename past renames
gitk --follow [filename]
share
|
improve this answer
|
...
Getting and removing the first character of a string
I would like to do some 2-dimensional walks using strings of characters by assigning different values to each character. I was planning to 'pop' the first character of a string, use it, and repeat for the rest of the string.
...
ASP.NET 2.0 - How to use app_offline.htm
...
I have used the extremely handy app_offline.htm trick to shut down/update sites in the past without any issues.
Be sure that you are actually placing the "app_offline.htm" file in the "root" of the website that you have configured within IIS.
Also ensure that the file is nam...
sed command with -i option failing on Mac, but works on Linux
...
If you use the -i option you need to provide an extension for your backups.
If you have:
File1.txt
File2.cfg
The command (note the lack of space between -i and '' and the -e to make it work on new versions of Mac and on GNU):
sed -i'.original' -e 's/old_link/new_link/g' *
Create 2 backup...
What is a user agent stylesheet?
I'm working on a web page in Google Chrome. It displays correctly with the following styles.
13 Answers
...
How do I remove duplicate items from an array in Perl?
...
You can do something like this as demonstrated in perlfaq4:
sub uniq {
my %seen;
grep !$seen{$_}++, @_;
}
my @array = qw(one two three two three);
my @filtered = uniq(@array);
print "@filtered\n";
Outputs:
one two three
If you want ...
Deleting a file in VBA
...
1.) Check here. Basically do this:
Function FileExists(ByVal FileToTest As String) As Boolean
FileExists = (Dir(FileToTest) <> "")
End Function
I'll leave it to you to figure out the various error handling needed but th...