大约有 42,000 项符合查询结果（耗时：0.0642秒） [XML]
Reading large text files with streams in C#
...ock of bytes in memory used to cache data, thereby reducing the number of calls to the operating system. Buffers improve read and write performance. A buffer can be used for either reading or writing, but never both simultaneously. The Read and Write methods of BufferedStream automatically maintain ...
Fast way to get image dimensions (not filesize)
...r if it reads the whole data for that though. See the manpage of exiv2 for all supported image formats.
head -n1 will give you the dimensions for PPM, PGM formats.
For formats popular on the web, both exiv2 and identify will do the job.
Depending on the use-case you may need to write your own scri...
How to “pull” from a local branch into another one?
...ut. I made an experimental branch a while ago, and now I'd like to pull in all the changes that happened on master since I made it. This is all local. I want to pull from local master into local my_branch, but I can't do it. This doesn't seem to work, telling me that master isn't a git repository:
...
Generator Expressions vs. List Comprehension
...or slicing
print [5,6] + gen() # generators can't be added to lists
Basically, use a generator expression if all you're doing is iterating once. If you want to store and use the generated results, then you're probably better off with a list comprehension.
Since performance is the most common rea...
Standard concise way to copy a file in Java?
...
As toolkit mentions above, Apache Commons IO is the way to go, specifically FileUtils.copyFile(); it handles all the heavy lifting for you.
And as a postscript, note that recent versions of FileUtils (such as the 2.0.1 release) have added the use of NIO for copying files; NIO can significantly ...
How to modify existing, unpushed commit messages?
... the most recent commit message
git commit --amend
will open your editor, allowing you to change the commit message of the most recent commit. Additionally, you can set the commit message directly in the command line with:
git commit --amend -m "New commit message"
…however, this can make multi-...
Change Bootstrap tooltip color
...!!! Fixed. @codesnooker didn't see that you were mentioning the arrow!!! Really sorry!!!
– Praveen Kumar Purushothaman
Mar 10 '15 at 10:03
4
...
Android TextView with Clickable Links: how to capture clicks?
...v this happens with ListViews when a View's focusable is set true. This usually happens with Buttons/ImageButtons. Try calling setFocusable(false) on your TextView.
– Sufian
Sep 11 '14 at 10:59
...
Maintain the aspect ratio of a div with CSS
... an example where the .stretchy-wrap.onethird padding-bottom of 25% is actually 25% of the parent width. Can someone explain this?
– Misterparker
Feb 8 '13 at 15:53
4
...
Read/write to Windows registry using Java
... (directly)
This is pure, Java code.
It uses reflection to work, by actually accessing the private methods in the java.util.prefs.Preferences class. The internals of this class are complicated, but the class itself is very easy to use.
For example, the following code obtains the exact windows di...