大约有 40,000 项符合查询结果（耗时：0.0836秒） [XML]
Syntax for a single-line Bash infinite while loop
...
I like to use the semicolons only for the WHILE statement,
and the && operator to make the loop do more than one thing...
So I always do it like this
while true ; do echo Launching Spaceship into orbit && sleep 5s && /usr/bin/launch-mechanism && echo Launchin...
How to combine two or more querysets in a Django view?
...sets into a list is the simplest approach. If the database will be hit for all querysets anyway (e.g. because the result needs to be sorted), this won't add further cost.
from itertools import chain
result_list = list(chain(page_list, article_list, post_list))
Using itertools.chain is faster than...
How can I get all the request headers in Django?
I need to get all the Django request headers. From what i've read, Django simply dumps everything into the request.META variable along with a lot aof other data. What would be the best way to get all the headers that the client sent to my Django application?
...
Java: splitting a comma-separated string but ignoring commas in quotes
...tln("> "+t);
}
}
}
which produces the same as the first example.
EDIT
As mentioned by @MikeFHay in the comments:
I prefer using Guava's Splitter, as it has saner defaults (see discussion above about empty matches being trimmed by String#split(), so I did:
Splitter.on(Pattern...
Why not infer template parameter from constructor?
...from class constructors, much as it can do from function parameters? For example, why couldn't the following code be valid:
...
Connecting overloaded signals and slots in Qt 5
...desired overload, so you can write
connect(spinbox, qOverload<int>(&QSpinBox::valueChanged),
slider, &QSlider::setValue);
For Qt 5.6 and earlier, you need to tell Qt which one you want to pick, by casting it to the right type:
connect(spinbox, static_cast<void (QSpinBox:...
Border length smaller than div width?
I have following code
12 Answers
12
...
Python strptime() and timezones?
I have a CSV dumpfile from a Blackberry IPD backup, created using IPDDump.
The date/time strings in here look something like this
(where EST is an Australian time-zone):
...
Git's famous “ERROR: Permission to .git denied to user”
...r LaunchPad)
Select "All items" in Category
Search "git"
Delete every old & strange item
Try to Push again and it just WORKED
share
|
improve this answer
|
follow
...
Newline in JLabel
...nd do this:
myLabel.setText("<html>" + myString.replaceAll("<","<").replaceAll(">", ">").replaceAll("\n", "<br/>") + "</html>")
The advantages of doing this are:
It replaces all newlines with <br/>, without fail.
It automatically replaces eventual &lt...