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App Inventor 2开发计步器与定位器 - App Inventor 2 中文网 - 清泛IT论坛，有思想、有深度
来源：http://www.zsqz.com/chuangke/10r.htm
【学习目标】
1.掌握App Inventor中对调用手机计步器、位置传感器等硬件传感器的应用；
2.了解数据持久化，掌握数据存储等功能的实现；
3.通过编程实践，感受和体验利用手机...
Fastest Way to Serve a File Using PHP
...nd either isn't installed by default (apache), isn't active by default (lighttpd) or need a specific configuration (nginx).
Apache
Under apache if you use mod_php you need to install a module called mod_xsendfile then configure it (either in apache config or .htaccess if you allow it)
XSendFile o...
Rails new vs create
...Rails' implementation of REST new and create are treated differently.
An HTTP GET to /resources/new is intended to render a form suitable for creating a new resource, which it does by calling the new action within the controller, which creates a new unsaved record and renders the form.
An HTTP PO...
A html space is showing as %2520 instead of %20
...
I have http://mysite/test & that... If I use UrlEncode` it changes to http://mysite/test%20&%20that but I also want the & to change to %26 as well so it's mysite/test%20%26%20that` How can I do that?
...
Node.js client for a socket.io server
...
That should be possible using Socket.IO-client: https://github.com/LearnBoost/socket.io-client
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Is it possible to make relative link to image in a markdown file in a gist?
...'m using syntax like this:
Here's an example:
https://github.com/mark-anders/relative-image-url
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Is it possible to have a Subversion repository as a Git submodule?
...or of the svn repository in a dedicated git repository.
git svn clone -s http://subversion.example.com/ mysvnclone
cd mysvnclone
git remote add origin git@example.com:project.git
git push origin master
Then you can add the git repository as a submodule to the original project
cd /path/to/gitpro...
Spring RestTemplate timeout
... @ConfigurationProperties(prefix = "custom.rest.connection")
public HttpComponentsClientHttpRequestFactory customHttpRequestFactory()
{
return new HttpComponentsClientHttpRequestFactory();
}
@Bean
public RestTemplate customRestTemplate()
{
return new Rest...
Parse RSS with jQuery
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XmlHttpRequest error: Origin is not allowed by Access-Control-Allow-Origin
– jackocnr
Aug 30 '12 at 19:05
12...
How to send a correct authorization header for basic authentication
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You can include the user and password as part of the URL:
http://user:passwd@www.server.com/index.html
see this URL, for more
HTTP Basic Authentication credentials passed in URL and encryption
of course, you'll need the username password, it's not 'Basic hashstring.
hope this h...