大约有 30,000 项符合查询结果（耗时：0.0250秒） [XML]
When would I use XML instead of SQL? [closed]
...ealise this answer was written in 2008, but with the advent of a number of file-based database systems I find myself wondering if they make more sense than conventional RDBMS in a number of situations. SQL was designed in the dark ages when disk space was costly, and it's become a way of thought wit...
Calling a class function inside of __init__
I'm writing some code that takes a filename, opens the file, and parses out some data. I'd like to do this in a class. The following code works:
...
Prefer composition over inheritance?
...e PHP5). All logic is encoded in a set of functions. You may include other files containing helper functions and so on and conduct your business logic by passing data around in functions. This can be very hard to manage as the application grows. PHP5 tries to remedy this by offering more object orie...
Ruby : How to write a gem? [closed]
...g Gemcutter's Api from the Commandline
New Gem with Bundler – Sample Rakefile - Useful rakefile for deploying and publishing a gem
Let's Write a Gem
How To Build A Ruby Gem With Bundler, Test-Driven Development, Travis CI And Coveralls, Oh My!
...
Understanding Linux /proc/id/maps
... my embedded Linux application's memory use. The /proc/pid/maps utility/file seems to be a good resource for seeing the details. Unfortunately I don't understand all the columns and entries.
...
Facebook App: localhost no longer works as app domain
...ing it on a remote sever like heroku.
The trick is to update the etc/hosts file this way:
127.0.0.1 mydomain.com
Then on the Facebook App's settings, type [http://] mydomain.com, without the "[" and "]"
It worked for me this way
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Where does Jenkins store configuration files for the jobs it runs?
...asily reinstall the software on the EC2 instance, but custom configuration files, like the ones for the jobs I create in Jenkins, would be deleted after the move.
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Representing and solving a maze given an image
...rectly.
Here is the MATLAB code for BFS:
function path = solve_maze(img_file)
%% Init data
img = imread(img_file);
img = rgb2gray(img);
maze = img > 0;
start = [985 398];
finish = [26 399];
%% Init BFS
n = numel(maze);
Q = zeros(n, 2);
M = zeros([size(maze) 2]);
front = ...
node.js execute system command synchronously
...
[EDIT Jun 2012: How to get STDOUT]
var lib = ffi.Library(null, {
// FILE* popen(char* cmd, char* mode);
popen: ['pointer', ['string', 'string']],
// void pclose(FILE* fp);
pclose: ['void', [ 'pointer']],
// char* fgets(char* buff, int buff, in)
fgets: ['string', ['string...
How to make rpm auto install dependencies
.../home/user/repo.
Move the RPMs into that directory.
Fix some ownership and filesystem permissions:
# chown -R root.root /home/user/repo
Install the createrepo package if not installed yet, and run
# createrepo /home/user/repo
# chmod -R o-w+r /home/user/repo
Create a repository configuration fil...