大约有 1,742 项符合查询结果（耗时：0.0210秒） [XML]
How to draw polygons on an HTML5 canvas?
...ze * Math.sin(i * 2 * Math.PI / numberOfSides));
}
ctx.strokeStyle = "#000000";
ctx.lineWidth = 1;
ctx.stroke();
#hexagon { border: thin dashed red; }
<canvas id="hexagon"></canvas>
share
|...
Replace non-ASCII characters with a single space
...ASCII replacement methods."""
import re
from timeit import timeit
# 10_000 is typical in the project that I'm working on and most of the text
# is going to be non-ASCII.
text = 'Æ' * 10_000
print(timeit(
"""
result = ''.join([c if ord(c) < 128 else '?' for c in text])
""",
numb...
How to format a number as percentage in R?
..._percent()(x)
## [1] "-100%" "0%" "10%" "56%" "100%" "10 000%"
Customize this by adding arguments inside the first set of parentheses.
label_percent(big.mark = ",", suffix = " percent")(x)
## [1] "-100 percent" "0 percent" "10 percent"
## [4] "56 percent" "100 per...
How to print time in format: 2009‐08‐10 18:17:54.811
...struct timeval" used by gettimeofday() has microseconds which, divided by 1000 will yield the milliseconds. All those upvotes are really wrong and misleading! Unless someone reports under which architecture you get time details below the second with "struct tm".
– EnzoR
...
What is the difference between id and class in CSS, and when should I use them? [duplicate]
...;Text</div>
#header_id {font-color:#fff}
.header_class {font-color:#000}
(Note that CSS uses the prefix # for IDs and . for Classes.)
However color was an HTML 4.01 <font> tag attribute deprecated in HTML 5.
In CSS there is no "font-color", the style is color so the above should read...
PyLint, PyChecker or PyFlakes? [closed]
...atis
import sys, time
stdout = sys.stdout
BAILOUT = 16
MAX_ITERATIONS = 1000
class Iterator(object) :
def __init__(self):
print 'Rendering...'
for y in xrange(-39, 39):
stdout.write('\n')
for x in xrange(-39, 39):
if self.mandelbrot(x...
How to automatically reload a page after a given period of inactivity
...
function refresh() {
if(new Date().getTime() - time >= 60000)
window.location.reload(true);
else
setTimeout(refresh, 10000);
}
setTimeout(refresh, 10000);
</script>
...
biggest integer that can be stored in a double
... do mean smaller, and that's exactly what I mean when I say smaller :-) -1,000,000 is less than 1, but it is not smaller.
– Steve Jessop
Dec 5 '09 at 13:23
...
Spring RestTemplate timeout
...tpRequestFactory) restTemplate.getRequestFactory();
rf.setReadTimeout(1 * 1000);
rf.setConnectTimeout(1 * 1000);
The first time this code is called it will set the timeout for the HttpComponentsClientHttpRequestFactory class used by the RestTemplate. Therefore, all subsequent calls made by RestTem...
Rank items in an array using Python/NumPy, without sorting array twice
...slower for small arrays. On my machine they're equal when the array has 2,000 elements. At 20,000 elements, your method is about 25% faster.
– joshayers
Mar 12 '11 at 20:33
...