大约有 45,000 项符合查询结果（耗时：0.0513秒） [XML]
How can I determine whether a 2D Point is within a Polygon?
...s after all), but macOS for example uses float for everything. macOS only knows points and a point can translate to one pixel, but depending on monitor resolution, it might translate to something else. On retina screens half a point (0.5/0.5) is pixel. Still, I never noticed that macOS UIs are signi...
How do I upgrade my ruby 1.9.2-p0 to the latest patch level using rvm?
...sk RVM to list the ruby versions available to install by running rvm list known.
In the output you should now see:
# MRI Rubies
...
[ruby-]1.9.2[-p320]
...
The square brackets around the patch level indicate that this is currently RVM's default patch level for ruby 1.9.2.
Finally, to install th...
Why does “_” (underscore) match “-” (hyphen)?
...).
(From section 3.3.4.7. Pattern Matching in the MySQL documentation.)
If you want to use the underscore in like as a literal, you have to escape it:
select * from a where name like '%taz\_manual%.pdf%';
share
...
How to append contents of multiple files into one file
...irst character in file 1.txt? You can find out by using od -c, and seeing if the first character is a \n.
– radical7
Aug 2 '13 at 0:04
...
How can I safely encode a string in Java to use as a filename?
...
If you want the result to resemble the original file, SHA-1 or any other hashing scheme is not the answer. If collisions must be avoided, then simple replacement or removal of "bad" characters is not the answer either.
Inst...
https URL with token parameter : how secure is it?
...k, site discovers the cookie and can present the user with the old data.
Now, the user wants to use a different browser on a different machine. In this case, offer a "transfer" button. When the user clicks on this button, she will get a "token". She can use this token on another computer to reset ...
How to find a text inside SQL Server procedures / triggers?
...t. But my suggestion is how to build technical wealth—spending more time now to be faster, more agile, and more reliable later. Read the article Big Ball of Mud for some ideas around this.
– ErikE
Sep 5 '16 at 16:41
...
What is the Python equivalent of static variables inside a function?
...foo.counter += 1
print "Counter is %d" % foo.counter
foo.counter = 0
If you want the counter initialization code at the top instead of the bottom, you can create a decorator:
def static_vars(**kwargs):
def decorate(func):
for k in kwargs:
setattr(func, k, kwargs[k])
...
Determine function name from within that function (without using traceback)
...or its name within the function itself. It has been proposed but rejected. If you don't want to play with the stack yourself, you should either use "bar" or bar.__name__ depending on context.
The given rejection notice is:
This PEP is rejected. It is not clear how it should be implemented or wh...
Bootstrap with jQuery Validation Plugin
...
I don't know why the code is not working on my form :(
– Alyssa Reyes
Apr 9 '14 at 14:44
...