大约有 35,480 项符合查询结果（耗时：0.0451秒） [XML]
MySQL: Set user variable from result of query
...-+
| 123456 | 5 |
| 111111 | 5 |
+--------+-------+
2 rows in set (0.00 sec)
Note that for SET, either = or := can be used as the assignment operator. However inside other statements, the assignment operator must be := and not = because = is treated as a comparison operator in non-SET stat...
Setting a timeout for socket operations
...et = new Socket();
socket.connect(new InetSocketAddress(ipAddress, port), 1000);
Quoting from the documentation
connect
public void connect(SocketAddress endpoint, int timeout) throws IOException
Connects this socket to the server with a specified timeout value. A timeout of zero is i...
How do I test if a variable is a number in Bash?
...
One approach is to use a regular expression, like so:
re='^[0-9]+$'
if ! [[ $yournumber =~ $re ]] ; then
echo "error: Not a number" >&2; exit 1
fi
If the value is not necessarily an integer, consider amending the regex appropriately; for instance:
^[0-9]+([.][0-9]+)?$
....
Java 8 stream reverse order
...ect[] temp = input.toArray();
return (Stream<T>) IntStream.range(0, temp.length)
.mapToObj(i -> temp[temp.length - i - 1]);
}
Another technique uses collectors to accumulate the items into a reversed list. This does lots of insertions at the front of Ar...
jQuery get the image src
...
205
src should be in quotes:
$('.img1 img').attr('src');
...
Changing .prop using jQuery does not trigger .change event
...
202
Change event is fired when the value is changed by users interaction on page and not when value...
Purging file from Git repo failed, unable to create new backup
... |
edited Apr 4 '14 at 0:53
user456814
answered Jun 19 '11 at 18:37
...
argparse store false if unspecified
...
|
edited Nov 20 '11 at 19:11
answered Nov 20 '11 at 18:31
...
Append an element with fade in effect [jQuery]
...
$(html).hide().appendTo("#mycontent").fadeIn(1000);
share
|
improve this answer
|
follow
|
...
Scrollview vertical and horizontal in android
... }
return true;
}
}
the layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<co...