大约有 14,600 项符合查询结果（耗时：0.0269秒） [XML]
How to execute a Ruby script in Terminal?
...
Just call: ruby your_program.rb
or
start your program with #!/usr/bin/env ruby,
make your file executable by running chmod +x your_program.rb
and do ./your_program.rb some_param
share...
What is the Difference Between Mercurial and Git?
...oose one DVCS over the other) is how the two programs manage branches.
To start a new branch, with Mercurial, you simply clone the repository to another directory and start developing. Then, you pull and merge.
With git, you have to explicitly give a name to the new topic branch you want to use, t...
How can I format a nullable DateTime with ToString()?
...mat)
=> dt == null ? "n/a" : ((DateTime)dt).ToString(format);
And starting in C# 6, you can use the null-conditional operator to simplify the code even more. The expression below will return null if the DateTime? is null.
dt2?.ToString("yyyy-MM-dd hh:mm:ss")
...
Apache2: 'AH01630: client denied by server configuration'
...rom all
2.4 configuration:
Require all granted
Also don't forget to restart the apache server after these changes (# service httpd restart)
share
|
improve this answer
|
...
android layout: This tag and its children can be replaced by one and a compound drawable
... the TextView doesn't set properly.
You need to set its gravity to center|start to achieve what shown in the asked question.
The textview looks like this:
<TextView
android:id="@+id/export_text"
android:layout_width="match_parent"
android:layout_height="match_parent"...
Can anyone explain IEnumerable and IEnumerator to me? [closed]
...private Car[] carArray = new Car[4];
// Fill with some Car objects upon startup.
public Garage()
{
carArray[0] = new Car("Rusty", 30);
carArray[1] = new Car("Clunker", 55);
carArray[2] = new Car("Zippy", 30);
carArray[3] = new Car("Fred", 30);
}
}
Ideally, it wo...
What is the difference between Polymer elements and AngularJS directives?
On the Polymer Getting Started page, we see an example of Polymer in action:
10 Answers
...
How do I manually create a file with a . (dot) prefix in Windows? For example, .htaccess
...
If you start Notepad and then File -> Save As -> Write .htaccess and choose "All Files" as the type - then it will create the .htaccess file for you.
...
Setting environment variables on OS X
...ables globally without needing to reboot.
# NOTE: You will still need to restart the relevant application (including
# Terminal) to pick up the changes!
# grep -E "^setenv" /etc/launchd.conf | xargs -t -L 1 launchctl
#
# See http://www.digitaledgesw.com/node/31
# and http://stackoverflow.com/questio...
Constructor function vs Factory functions
...le
But my main concern is that it violates the open/closed principle. You start out exporting a constructor, users start using the constructor, then down the road you realize you need the flexibility of a factory, instead (for instance, to switch the implementation to use object pools, or to instan...