大约有 44,000 项符合查询结果（耗时：0.0382秒） [XML]
How to automatically generate N “distinct” colors?
...ike so:
// assumes hue [0, 360), saturation [0, 100), lightness [0, 100)
for(i = 0; i < 360; i += 360 / num_colors) {
HSLColor c;
c.hue = i;
c.saturation = 90 + randf() * 10;
c.lightness = 50 + randf() * 10;
addColor(c);
}
...
What is the difference between an annotated and unannotated tag?
...gt;, Git will create a tag at the current revision but will not prompt you for an annotation. It will be tagged without a message (this is a lightweight tag).
When you use git tag -a <tagname>, Git will prompt you for an annotation unless you have also used the -m flag to provide a message.
Wh...
mysql error 1364 Field doesn't have a default values
...
Set a default value for Created_By (eg: empty VARCHAR) and the trigger will update the value anyways.
create table try (
name varchar(8),
CREATED_BY varchar(40) DEFAULT '' not null
);
...
jQuery get textarea text
...en clicked. You can get the text using the value attribute as the poster before has pointed out, or using jQuery's API:
$('input#mybutton').click(function() {
var text = $('textarea#mytextarea').val();
//send to server and process response
});
...
open_basedir restriction in effect. File(/) is not within the allowed path(s):
...getting this error on an avatar upload on my site. I've never gotten it before and nothing was changed recently for me to begin getting this error...
...
How to run a single RSpec test?
...t sure how long this has bee available but there is an Rspec configuration for run filtering - so now you can add this to your spec_helper.rb:
RSpec.configure do |config|
config.filter_run_when_matching :focus
end
And then add a focus tag to the it, context or describe to run only that block:
...
Maximum number of characters using keystrokes A, Ctrl+A, Ctrl+C and Ctrl+V
...on. We start off knowing 0 keys can make us 0 A's. Then we iterate through for i up to n, doing two things: pressing A once and pressing select all + copy followed by paste j times (actually j-i-1 below; note the trick here: the contents are still in the clipboard, so we can paste it multiple times ...
Regex - how to match everything except a particular pattern
...
Standard Lex for C does not use PCREs :-(
– pieman72
Feb 2 '15 at 21:54
|
show...
How to get current relative directory of your Makefile?
...s the current working directory, not the parent directory of the Makefile. For example, if you run cd /; make -f /home/username/project/Makefile, the current_dir variable will be /, not /home/username/project/.
Code below will work for Makefiles invoked from any directory:
mkfile_path := $(abspat...
List comprehension rebinds names even after scope of comprehension. Is this right?
...on "leaks" the loop control
variable into the surrounding scope:
x = 'before'
a = [x for x in 1, 2, 3]
print x # this prints '3', not 'before'
This was an artifact of the original
implementation of list comprehensions;
it was one of Python's "dirty little
secrets" for years. It starte...