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Nginx url重写rewrite实例详解 - 更多技术 - 清泛网移动版 - 专注C/C++及内核技术
...了。
有需要的可以参考此写法。
常用分组语法
捕获
(exp) 匹配exp,并捕获文本到自动命名的组里
(?exp) 匹配exp,并捕获文本到名称为name的组里，也可以写成(?'name'exp)
(?:exp) 匹配exp,不捕获匹配的文本，也不给此分组分配组号
(?=...
Java 8 Streams: multiple filters vs. complex condition
...g code but this can change if you use method references rather than lambda expressions, e.g. replace filter(x -> x.isCool()) by filter(ItemType::isCool). That way you have eliminated the synthetic delegating method created for your lambda expression. So combining two filters using two method refe...
正则表达式 30 分钟入门教程 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...串是否匹配一个正则表达式”的方法，如JavaScript里的RegExp.test()方法或.NET里的Regex.IsMatch()方法。这里的匹配是指是字符串里有没有符合表达式规则的部分。如果不使用^和$的话，对于\d{5,12}而言，使用这样的方法就只能保证字符...
Python memoising/deferred lookup property decorator
...
I found this method to be 7.6 times faster than the selected answer. (2.45 µs / 322 ns) See ipython notebook
– Dave Butler
Feb 28 '14 at 19:49
1
...
How to suppress scientific notation when printing float values?
... (in original function, a negative number would end up like 0.0000-108904 from -1.08904e-05)
def getExpandedScientificNotation(flt):
was_neg = False
if not ("e" in flt):
return flt
if flt.startswith('-'):
flt = flt[1:]
was_neg = True
str_vals = str(flt).spl...
Why is a round-trip conversion via a string not safe for a double?
...7 digits.
Proof: run the following 64-bit code (most of which I extracted from the Microsoft Shared Source CLI 2.0) in your debugger and examine v at the end of main:
#include <stdlib.h>
#include <string.h>
#include <math.h>
#define min(a, b) (((a) < (b)) ? (a) : (b))
struct...
How do I write a for loop in bash
...
From this site:
for i in $(seq 1 10);
do
echo $i
done
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Why does the C preprocessor interpret the word “linux” as the constant “1”?
...ether its a good idea or not. I am firm in the belief that such deviations from the standard should be easy to find in the documentation.
– rici
Oct 6 '13 at 19:43
...
How to avoid explicit 'self' in Python?
... @Roger Pate: Please stop editing my question to remove python from it. I think that it belongs there. (and thanks for the answer!)
– bguiz
Nov 1 '10 at 3:25
3
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Creating a Radial Menu in CSS
...le-factor: cos($skew-angle); // correction factor - see vimeo.com/98137613 from min 15
$off-angle: .125deg; // offset angle so we have a little space between menu items
// don't show the actual checkbox
input {
transform: translate(-100vw); // move offscreen
visibility: hidden; // avoid paint
}...