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云数据及Firebase组件简介 · App Inventor 2 中文网
...称为 FirebaseError，它让 Web 服务报告错误，这通常是通信问题的结果：
ShareValue：一个带有云数据的简单App
ShareValue 是一个使用 FirebaseDB 组件的简单应用程序。 它允许安装该应用程序的任何人设置共享云值并查看该值何时发生...
How to select multiple files with ?
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<form enctype='multipart/form-data' method='POST' action='submitFormTo.php'>
<input type='file' name='files[]' multiple />
<button type='submit'>Submit</button>
</form>
Make sure you have the enctype='multipart/form-data' attribute in your <form> tag, ...
Are Stored Procedures more efficient, in general, than inline statements on modern RDBMS's? [duplica
...plication is using, which cuts down on network traffic, unnecessary joins, etc.
share
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Using javadoc for Python documentation [closed]
I am currently beginning with Python and I have a strong PHP background and in PHP I have took the habit of using javadoc as a documentation template.
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扒皮美女创业者：15分钟拿下薛蛮子 7家风投追捧 - 资讯 - 清泛网 - 专注C/C...
...拿的是自家的钱在创业，那是创业没多久，就要考虑盈利问题的，如果持续不赚钱，没有人会进行下去。但是互联网投资就不一样了，烧的是别人的钱，钱烧的越快，市场占有的越广，说明你越牛X.
不乏一些情况下，烧钱烧到...
Listing only directories in UNIX
...y, even if the -F option of ls isn't used. Similar to the behaviour of ls *php and how it displays all files ending with php in a directory.
– David Hancock
Oct 18 '13 at 15:24
3
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do you have kcachegrind like profiling tools for mac [closed]
...qcachegrind (brew install qcachegrind)
XHProf: A Hierarchical Profiler for PHP (pecl install xhprof)
MCG premium app can analyse your application profile data natively on your Mac (released to the Mac App Store at $27)
Profiling Viewer, available on App Store at $25
Older: MacCallGrind (semi-commer...
Bash Templating: How to build configuration files from templates with Bash?
...onf file.
STATUS_URI="/hows-it-goin"; MONITOR_IP="10.10.2.15";
cat >/etc/apache2/conf.d/mod_status.conf <<EOF
<Location ${STATUS_URI}>
SetHandler server-status
Order deny,allow
Deny from all
Allow from ${MONITOR_IP}
</Location>
EOF
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What does f+++++++++ mean in rsync logs?
...he item (such as the creation of a directory or the changing of a symlink, etc.).
A h means that the item is a hard link to another item (requires --hard-links).
A . means that the item is not being updated (though it might have attributes that are being modified).
A * means that the rest of the ite...
Can I 'git commit' a file and ignore its content changes?
...means, if there are any changes upstream to that file (legitimate changes, etc.) when you do a pull, it will say:
$ git pull
…
From https://github.com/x/y
72a914a..106a261 master -> origin/master
Updating 72a914a..106a261
error: Your local changes to the following files would be overwri...