大约有 14,600 项符合查询结果（耗时：0.0346秒） [XML]
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...
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)
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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"...
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
...
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...
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.
...
Regular expression to match URLs in Java
...rentheses, separated by spaces, dots, or dashes.
* <li>A string starting and ending with a digit, containing digits, spaces, dots, and/or dashes.
* </ul>
*/
public static final Pattern PHONE
= Pattern.compile( // sdd = space, dot, or dash
...
Android Eclipse - Could not find *.apk
...o work for me. I was able to build my apk without issues until this error started cropping up. I have tried cleaning my project, removing it from the workspace and reimporting it, removing "Java Builder" from my Builders for the project, building the project manually, reordering my java build path...