大约有 30,000 项符合查询结果（耗时：0.0481秒） [XML]
Reading a resource file from within jar
...
Rather than trying to address the resource as a File just ask the ClassLoader to return an InputStream for the resource instead via getResourceAsStream:
InputStream in = getClass().getResourceAsStream("/file.txt");
BufferedReader reader = new BufferedReader(new InputStre...
How can I delete a file from a Git repository?
I have added a file named "file1.txt" to a Git repository. After that, I committed it, added a couple of directories called dir1 and dir2 , and committed them to the Git repository.
...
mongo group query how to keep fields
... group, you can try aggregating like:
db.test.aggregate({
$group: {
_id : '$name',
name : { $first: '$name' },
age : { $first: '$age' },
sex : { $first: '$sex' },
province : { $first: '$province' },
city : { $first: '$city' },
area : { $first: '$area' },
address : { $first...
LEN function not including trailing spaces in SQL Server
... I include the trailing spaces in the length result?"
You get someone to file a SQL Server enhancement request/bug report because nearly all the listed workarounds to this amazingly simple issue here have some deficiency or are inefficient. This still appears to be true in SQL Server 2012. The a...
Pandas get topmost n records within each group
...
Did you try df.groupby('id').head(2)
Ouput generated:
>>> df.groupby('id').head(2)
id value
id
1 0 1 1
1 1 2
2 3 2 1
4 2 2
3 7 3 1
4 8 4 1
...
Git: list only “untracked” files (also, custom commands)
Is there a way to use a command like git ls-files to show only untracked files?
9 Answers
...
Why are there two ways to unstage a file in Git?
Sometimes git suggests git rm --cached to unstage a file, sometimes git reset HEAD file . When should I use which?
13 An...
How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
Using the HTML5 <canvas> element, I would like to load an image file (PNG, JPEG, etc.), draw it to the canvas completely transparently, and then fade it in. I have figured out how to load the image and draw it to the canvas, but I don't know how to change its opacity once it as been drawn.
...
Removing duplicate objects with Underscore for Javascript
...ed (e.g. _.uniq(a, false, 'a')) I pinged github/bestiejs/lodash and they said the issue was fixed on edge. So if you're not using a function, make sure you have the latest. This may not be an issue for underscore.
– Shanimal
Mar 16 '13 at 15:08
...
How do I use Java to read from a file that is actively being written to?
I have an application that writes information to file. This information is used post-execution to determine pass/failure/correctness of the application. I'd like to be able to read the file as it is being written so that I can do these pass/failure/correctness checks in real time.
...