大约有 46,000 项符合查询结果（耗时：0.0575秒） [XML]
How to install python3 version of package via pip on Ubuntu?
I have both python2.7 and python3.2 installed in Ubuntu 12.04 .
The symbolic link python links to python2.7 .
17 ...
How do I clear the std::queue efficiently?
...
A common idiom for clearing standard containers is swapping with an empty version of the container:
void clear( std::queue<int> &q )
{
std::queue<int> empty;
std::swap( q, empty );
}
It is also the only way of actually clearing th...
How to count number of files in each directory?
...
Assuming you have GNU find, let it find the directories and let bash do the rest:
find . -type d -print0 | while read -d '' -r dir; do
files=("$dir"/*)
printf "%5d files in directory %s\n" "${#files[@]}" "$dir"
done
...
Remove the complete styling of an HTML button/submit
...tyling of a button in Internet Explorer? I use a css sprite for my button, and everything looks ok.
7 Answers
...
rgdal package installation
... >= 1.7.1 library
from http://trac.osgeo.org/gdal/wiki/DownloadSource and PROJ.4 (proj >= 4.4.9) from http://trac.osgeo.org/proj/; GDAL OSX frameworks built by William Kyngesburye at http://www.kyngchaos.com/ may be used for
source installs on OSX.
As you seem to be under Linux, you alwa...
Disabling swap files creation in vim
...es creation in vim? or at least create them all in one place so I can find and delete them easily.
10 Answers
...
Why are my PowerShell scripts not running?
I wrote a simple batch file as a PowerShell script, and I am getting errors when they run.
9 Answers
...
Using module 'subprocess' with timeout
Here's the Python code to run an arbitrary command returning its stdout data, or raise an exception on non-zero exit codes:
...
How can I get the current network interface throughput statistics on Linux/UNIX? [closed]
Tools such as MRTG provide network throughput / bandwidth graphs for the current network utilisation on specific interfaces, such as eth0. How can I return that information at the command line on Linux/UNIX?
...
Best way to detect that HTML5 is not supported
The standard way to deal with situations where the browser does not support the HTML5 <canvas> tag is to embed some fallback content like:
...