大约有 40,700 项符合查询结果（耗时：0.0574秒） [XML]
Is there a method to generate a UUID with go language
I have code that looks like this:
12 Answers
12
...
Is MATLAB OOP slow or am I doing something wrong?
...ng with OO MATLAB for a while, and ended up looking at similar performance issues.
The short answer is: yes, MATLAB's OOP is kind of slow. There is substantial method call overhead, higher than mainstream OO languages, and there's not much you can do about it. Part of the reason may be that idiomat...
How can I write output from a unit test?
...nsole.Write(Line) simply gets skipped over while debugging and the output is never printed. Calls to these functions from within classes I'm using work fine.
...
How to model type-safe enum types?
..., Tue, Wed, Thu, Fri, Sat, Sun = Value
}
import WeekDay._
def isWorkingDay(d: WeekDay) = ! (d == Sat || d == Sun)
WeekDay.values filter isWorkingDay foreach println
}
share
|
im...
Why do people write the #!/usr/bin/env python shebang on the first line of a Python script?
...ersions of Python installed, /usr/bin/env will ensure the interpreter used is the first one on your environment's $PATH. The alternative would be to hardcode something like #!/usr/bin/python; that's ok, but less flexible.
In Unix, an executable file that's meant to be interpreted can indicate what ...
How do you connect to multiple MySQL databases on a single webpage?
...e same you need to pass true for the '$new_link' (fourth) parameter, otherwise the same connection is reused. For example:
$dbh1 = mysql_connect($hostname, $username, $password);
$dbh2 = mysql_connect($hostname, $username, $password, true);
mysql_select_db('database1', $dbh1);
mysql_select_db('d...
Order of event handler execution
...
Currently, they are executed in the order they are registered. However, this is an implementation detail, and I would not rely on this behavior staying the same in future versions, since it is not required by specifications.
...
How do I check if a string contains a specific word?
...
You can use the strpos() function which is used to find the occurrence of one string inside another one:
$a = 'How are you?';
if (strpos($a, 'are') !== false) {
echo 'true';
}
Note that the use of !== false is deliberate (neither != false nor === true will re...
How can I check if a string represents an int, without using try/except?
Is there any way to tell whether a string represents an integer (e.g., '3' , '-17' but not '3.14' or 'asfasfas' ) Without using a try/except mechanism?
...
Prevent BODY from scrolling when a modal is opened
...while the Modal (from http://twitter.github.com/bootstrap ) on my website is opened.
41 Answers
...