大约有 47,000 项符合查询结果(耗时:0.0552秒) [XML]
Fastest Way to Serve a File Using PHP
...and not well documented, here is an update with a summary of the solutions from it and from others in the discussion.
The solutions are ordered from best solution to worst but also from the solution needing the most control over the web server to the one needing the less. There don't seem to be an ...
nonlocal keyword in Python 2.x
...nd store your data as elements therein. Inner functions are not prohibited from mutating the objects that nonlocal variables refer to.
To use the example from Wikipedia:
def outer():
d = {'y' : 0}
def inner():
d['y'] += 1
return d['y']
return inner
f = outer()
print(f(...
Volatile vs. Interlocked vs. lock
...e two CPUs see the same data at the same time. It doesn't stop them at all from interleaving their reads and write operations which is the problem you are trying to avoid.
Second Best:
lock(this.locker) this.counter++;
This is safe to do (provided you remember to lock everywhere else that you acce...
raw_input function in Python
...ts a prompt to the user (the optional arg of raw_input([arg])), gets input from the user and returns the data input by the user in a string. See the docs for raw_input().
Example:
name = raw_input("What is your name? ")
print "Hello, %s." % name
This differs from input() in that the latter trie...
How to include package data with setuptools/distribute?
... file if no template is provided. See Specifying the files to distribute." from distutils. So, you'll only see the behaviour of files in package_data being automatically included in the ZIP if you have no existing MANIFEST.in file, and only if you're using 2.7+.
– Johnus
...
Does Python have “private” variables in classes?
I'm coming from the Java world and reading Bruce Eckels' Python 3 Patterns, Recipes and Idioms .
12 Answers
...
What is a “thread” (really)?
...a break right now, but you want to be able to come back and resume reading from the exact point where you stopped. One way to achieve that is by jotting down the page number, line number, and word number. So your execution context for reading a book is these 3 numbers.
If you have a roommate, and s...
Interfaces — What's the point?
The reason for interfaces truly eludes me. From what I understand, it is kind of a work around for the non-existent multi-inheritance which doesn't exist in C# (or so I was told).
...
How can a Java variable be different from itself?
...m.out.println("Not ok");
}
Not ok
You can do the same with Double.NaN.
From JLS §15.21.1. Numerical Equality Operators == and !=:
Floating-point equality testing is performed in accordance with the rules of the IEEE 754 standard:
If either operand is NaN, then the result of == is false but th...
How to remove duplicate values from a multi-dimensional array in PHP
How can I remove duplicate values from a multi-dimensional array in PHP?
19 Answers
19...
