大约有 40,000 项符合查询结果（耗时：0.0618秒） [XML]
Current time in microseconds in java
...
On Linux, System.nanoTime() calls clock_gettime(CLOCK_MONOTONIC,_). Brian Oxley dug into Java's source code to find this nugget.
– David Weber
Aug 12 '14 at 13:18
...
How to update Python?
...stalled and their versions. Some were installed by PortablePython. Use easy_install pip to install pip if it wasn't installed.
If OP has 2.7.x and wants to install a different version, e.g. <=2.6.x or >=3.x.x, then installing different versions side-by-side is fine. You must choose which vers...
Django. Override save for model
...
Some thoughts:
class Model(model.Model):
_image=models.ImageField(upload_to='folder')
thumb=models.ImageField(upload_to='folder')
description=models.CharField()
def set_image(self, val):
self._image = val
self._image_changed = True
...
Make a link use POST instead of GET
...outline: none;
}
.link-button:active {
color:red;
}
<a href="some_page">This is a regular link</a>
<form method="post" action="some_page" class="inline">
<input type="hidden" name="extra_submit_param" value="extra_submit_value">
<button type="submit" name="...
Python, Unicode, and the Windows console
...icode API as the win-unicode-console package mentioned below. print(unicode_string) should just work now.
I get a UnicodeEncodeError: 'charmap' codec can't encode character... error.
The error means that Unicode characters that you are trying to print can't be represented using the current...
Random “Element is no longer attached to the DOM” StaleElementReferenceException
...bara appears to be pretty smart about waiting for DOM changes (see Why wait_until was removed from Capybara
), but the default wait time of 2 seconds was simply not enough in my case. Changed in _spec_helper.rb_ with e.g.
Capybara.default_max_wait_time = 5
...
How do I perform a Perl substitution on a string while keeping the original?
...
I was wondering if something like my $new = $_ for $old =~ s/foo/bar; would work?
– Benoit
Apr 30 '14 at 17:11
...
Regular expression for first and last name
...'ve tested in python and it supports the characters below:
^[\w'\-,.][^0-9_!¡?÷?¿/\\+=@#$%ˆ&*(){}|~<>;:[\]]{2,}$
Characters supported:
abcdefghijklmnopqrstwxyz
ABCDEFGHIJKLMNOPQRSTUVWXYZ
áéíóúäëïöüÄ'
陳大文
łŁőŐűŰZàáâäãåąčćęèéêëėįìíîïłńòó...
Cannot create an NSPersistentStoreCoordinator with a nil model
... Your right. It's null and so this line is causing the error: ` __persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel: [self managedObjectModel]];` Changing to mom doesn't seem to fix anything though
– Dominic Williams
...
Automatically capture output of last command into a variable using Bash?
...y getting at results.
That being said, here is the "solution":
PROMPT_COMMAND='LAST="`cat /tmp/x`"; exec >/dev/tty; exec > >(tee /tmp/x)'
Set this bash environmental variable and issues commands as desired. $LAST will usually have the output you are looking for:
startide seth> ...