大约有 46,000 项符合查询结果（耗时：0.0402秒） [XML]
Remove trailing zeros
...this, if the input IS a string? You can use one of these:
string.Format("{0:G29}", decimal.Parse("2.0044"))
decimal.Parse("2.0044").ToString("G29")
2.0m.ToString("G29")
This should work for all input.
Update Check out the Standard Numeric Formats I've had to explicitly set the precision specif...
Returning value from called function in a shell script
... echo >&2 "successfully acquired lock: $lockdir"
retval=0
else
echo >&2 "cannot acquire lock, giving up on $lockdir"
retval=1
fi
return "$retval"
}
testlock
retval=$?
if [ "$retval" == 0 ]
then
echo "directory not created"
else
echo ...
How can I round down a number in Javascript?
...
|
edited Sep 30 '19 at 10:01
Gerrit Bertier
3,1071515 silver badges2727 bronze badges
answer...
Cluster analysis in R: determine the optimal number of clusters
...
1024
If your question is how can I determine how many clusters are appropriate for a kmeans analysi...
How to check whether a string is Base64 encoded or not
...
20 Answers
20
Active
...
Getting LaTeX into R Plots
...
answered Sep 12 '09 at 1:11
Christopher DuBoisChristopher DuBois
36.7k2323 gold badges6565 silver badges9191 bronze badges
...
How do you remove a Cookie in a Java Servlet
...okie to persist for the duration of the session. You want to set MaxAge to 0 instead.
From the API documentation:
A negative value means that the cookie is not stored persistently and will be deleted when the Web browser exits. A zero value causes the cookie to be deleted.
...
T-SQL datetime rounded to nearest minute and nearest hours with using functions
In SQL server 2008, I would like to get datetime column rounded to nearest hour and nearest minute preferably with existing functions in 2008.
...
How to check if a process id (PID) exists
...
10 Answers
10
Active
...