大约有 42,000 项符合查询结果(耗时:0.0388秒) [XML]
How to only get file name with Linux 'find'?
... paths. However, I need only file names. i.e. I get ./dir1/dir2/file.txt and I want to get file.txt
10 Answers
...
Why does std::getline() skip input after a formatted extraction?
I have the following piece of code that prompts the user for their name and state:
3 Answers
...
Safe (bounds-checked) array lookup in Swift, through optional bindings?
If I have an array in Swift, and try to access an index that is out of bounds, there is an unsurprising runtime error:
19 A...
What is your single most favorite command-line trick using Bash? [closed]
...es with suffixes quickly:
cp /home/foo/realllylongname.cpp{,-old}
This expands to:
cp /home/foo/realllylongname.cpp /home/foo/realllylongname.cpp-old
share
answered Sep 16 '0...
How can I remove the first line of a text file using bash/sed script?
...you the last 5 lines of the input. The + sign kind of inverts the argument and make tail print anything but the first x-1 lines. tail -n +1 would print the whole file, tail -n +2 everything but the first line, etc.
GNU tail is much faster than sed. tail is also available on BSD and the -n +2 flag i...
How to connect android emulator to the internet
How can I connect my Android emulator to the internet, e.g. to use the browser? I've found lots of advice on what do to when your connected through a proxy, but that's not the case here, my machine (Windows 7) is directly connected to the router.
...
How do I find the location of my Python site-packages directory?
...
There are two types of site-packages directories, global and per user.
Global site-packages ("dist-packages") directories are listed in sys.path when you run:
python -m site
For a more concise list run getsitepackages from the site module in Python code:
python -c 'import sit...
What's the simplest way to test whether a number is a power of 2 in C++?
...will want to check for it explicitly.
http://www.graphics.stanford.edu/~seander/bithacks.html has a large collection of clever bit-twiddling algorithms, including this one.
share
|
improve this ans...
Is there a minlength validation attribute in HTML5?
...
If you enters an invalid input and you're using setCustomValidity, then it will continue to show you the error message even after you corrected the input. You can use the following onchange method to counter this. oninvalid="this.setCustomValidity('Field m...
How to rename a single column in a data.frame?
...set the second column's name. Your object only has one column, so the command throws an error. This should be sufficient:
colnames(trSamp) <- "newname2"
share
|
improve this answer
|...
