大约有 46,000 项符合查询结果（耗时：0.0416秒） [XML]
Fastest Way to Serve a File Using PHP
...receives a file path, identifies what it is, sets the appropriate headers, and serves it just like Apache would.
8 Answers
...
Regular expressions in C: examples?
I'm after some simple examples and best practices of how to use regular expressions in ANSI C. man regex.h does not provide that much help.
...
What is the difference between libsqlite3.dylib and libsqlite3.0.dylib?
...
Thanks Jeff - I wasn't sure and didn't want to assume either way.
– earnshavian
Dec 2 '10 at 5:11
5
...
Checking images for similarity with OpenCV
... entire research magazines.
I will outline the most common such techniques and their results.
Comparing histograms
One of the simplest & fastest methods. Proposed decades ago as a means to find picture simmilarities. The idea is that a forest will have a lot of green, and a human face a lot of p...
Generating random number between 1 and 10 in Bash Shell Script [duplicate]
How would I generate an inclusive random number between 1 to 10 in Bash Shell Script?
6 Answers
...
Does use of final keyword in Java improve the performance?
...s, HotSpot keeps track of whether the method has actually been overridden, and is able to perform optimizations such as inlining on the assumption that a method hasn't been overridden - until it loads a class which overrides the method, at which point it can undo (or partially undo) those optimizati...
Truncating floats in Python
...
First, the function, for those who just want some copy-and-paste code:
def truncate(f, n):
'''Truncates/pads a float f to n decimal places without rounding'''
s = '{}'.format(f)
if 'e' in s or 'E' in s:
return '{0:.{1}f}'.format(f, n)
i, p, d = s.partitio...
Preferred way to create a Scala list
...example code below). You can use a mutable ListBuffer, create a var list and modify it, use a tail recursive method, and probably others that I don't know about.
...
Why does changing the sum order returns a different result?
...gnificant digits, where each addition is performed at "infinite" precision and then rounded to the nearest representable number. Here are two sums:
1/3 + 2/3 + 2/3 = (0.3333 + 0.6667) + 0.6667
= 1.000 + 0.6667 (no rounding needed!)
= 1.667 (where 1.6667 is rounded to...
How to prevent Browser cache for php site
...dd new files css, js or images the browser is loading the same old js, css and image files stored in cache.
5 Answers
...