大约有 13,071 项符合查询结果（耗时：0.0284秒） [XML]
SQL - Rounding off to 2 decimal places
I need to convert minutes to hours, rounded off to 2 decimal places.I also need to display only up to 2 numbers after the decimal point. So if I have minutes as 650.Then hours should be 10.83
...
Java Pass Method as Parameter
I am looking for a way to pass a method by reference. I understand that Java does not pass methods as parameters, however, I would like to get an alternative.
...
O(nlogn) Algorithm - Find three evenly spaced ones within binary string
I had this question on an Algorithms test yesterday, and I can't figure out the answer. It is driving me absolutely crazy, because it was worth about 40 points. I figure that most of the class didn't solve it correctly, because I haven't come up with a solution in the past 24 hours.
...
Check if OneToOneField is None in Django
...
To check if the (OneToOne) relation exists or not, you can use the hasattr function:
if hasattr(request.user, 'type1profile'):
# do something
elif hasattr(request.user, 'type2profile'):
# do something else
else:
# do something else
...
How to export data as CSV format from SQL Server using sqlcmd?
I can quite easily dump data into a text file such as:
11 Answers
11
...
What is the difference between HTTP status code 200 (cache) vs status code 304?
I'm using the Google "Page Speed" plug-in for Firefox to access my web site.
5 Answers
...
can't push to branch after rebase
We use git and have a master branch and developer branches. I need to add a new feature and then rebase the commits to master, then push master to CI server.
...
iTerm 2: How to set keyboard shortcuts to jump to beginning/end of line?
I can see that Ctrl + left / right jumps to the beginning/end of line. How to change this to Cmd + left / right arrow ?
...
Which characters are valid in CSS class names/selectors?
...S class selectors?
I know that the following characters are invalid , but what characters are valid ?
10 Answers
...
How to detect if my shell script is running through a pipe?
How do I detect from within a shell script if its standard output is being sent to a terminal or if it's piped to another process?
...