大约有 40,000 项符合查询结果（耗时：0.0413秒） [XML]
Hidden features of C
...ints to the compiler (common in the Linux kernel)
#define likely(x) __builtin_expect((x),1)
#define unlikely(x) __builtin_expect((x),0)
see: http://kerneltrap.org/node/4705
What I like about this is that it also adds some expressiveness to some functions.
void foo(int arg)
{
if (...
Is there a way to detect if an image is blurry?
...ed image and takes the average of the 90% highest frequencies:
testFft[img_] := Table[
(
blurred = GaussianFilter[img, r];
fft = Fourier[ImageData[blurred]];
{w, h} = Dimensions[fft];
windowSize = Round[w/2.1];
Mean[Flatten[(Abs[
fft[[w/2 - windowSize ;; w/2 + windowSize,
...
Ignore .pyc files in git repository
... as a shell glob suitable for
consumption by fnmatch(3) with the FNM_PATHNAME flag: wildcards in
the pattern will not match a / in the pathname. For example,
"Documentation/*.html" matches "Documentation/git.html" but not
"Documentation/ppc/ppc.html" or
"tools/perf...
How to print third column to last column?
...s trated as a new line when printed iwth print
– meso_2600
Apr 1 '15 at 16:26
15
To address the s...
Convert Dictionary to semicolon separated string in c#
...
Edited according to comments.
– the_drow
Oct 6 '10 at 11:18
7
@Amittai, @the_dr...
How to .gitignore files recursively
... the repo root (parent directory of /Webapp).
– lucid_dreamer
May 6 '18 at 22:33
1
...
Python exit commands - why so many and when should each be used?
...ution. The choices I've found are: quit() , exit() , sys.exit() , os._exit()
4 Answers
...
URL Encoding using C#
... %5E %5E ^ ^ %5E
_ _ _ _ _ _ _ _ %5F
` %60 %60 ` %60 %60 ` ...
How can you determine a point is between two other points on a line segment?
...def distance(a,b):
return sqrt((a.x - b.x)**2 + (a.y - b.y)**2)
def is_between(a,c,b):
return distance(a,c) + distance(c,b) == distance(a,b)
share
|
improve this answer
|
...
“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?
...y 4 bytes in UTF-8.
You may also have to set the server property character_set_server to utf8mb4 in the MySQL configuration file. It seems that Connector/J defaults to 3-byte Unicode otherwise:
For example, to use 4-byte UTF-8 character sets with Connector/J, configure the MySQL server with cha...