大约有 47,000 项符合查询结果（耗时：0.0617秒） [XML]
if, elif, else statement issues in Bash
...
460
There is a space missing between elif and [:
elif[ "$seconds" -gt 0 ]
should be
elif [ "$sec...
How can I convert a hex string to a byte array? [duplicate]
...
502
Here's a nice fun LINQ example.
public static byte[] StringToByteArray(string hex) {
retur...
How to round an average to 2 decimal places in PostgreSQL?
...For example:
regress=> SELECT to_char(float8 '3.1415927', 'FM999999999.00');
to_char
---------------
3.14
(1 row)
to_char will round numbers for you as part of formatting. The FM prefix tells to_char that you don't want any padding with leading spaces.
...
How can I update the current line in a C# Windows Console App?
...
805
If you print only "\r" to the console the cursor goes back to the beginning of the current line...
Ruby Array find_first object?
...
203
Either I don't understand your question, or Enumerable#find is the thing you were looking for.
...
sql ORDER BY multiple values in specific order?
...
bobfluxbobflux
8,84022 gold badges2323 silver badges2222 bronze badges
...
My docker container has no internet
...
110
First thing to check is run cat /etc/resolv.conf in the docker container. If it has an invalid D...
Specifying Maven's local repository location as a CLI parameter
...
260
use maven property maven.repo.local:
mvn -Dmaven.repo.local=$HOME/.my/other/repository clean in...
Argparse optional positional arguments?
...tion='store_true')
_StoreTrueAction(option_strings=['-v'], dest='v', nargs=0, const=True, default=False, type=None, choices=None, help=None, metavar=None)
>>> parser.add_argument('dir', nargs='?', default=os.getcwd())
_StoreAction(option_strings=[], dest='dir', nargs='?', const=None, defaul...
Android adding simple animations while setvisibility(view.Gone)
.... For this I suggest you use the new animation API introduced in Android 3.0 (Honeycomb). I can give you a few examples:
This fades out a View:
view.animate().alpha(0.0f);
This fades it back in:
view.animate().alpha(1.0f);
This moves a View down by its height:
view.animate().translationY(vie...