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什么是 Ringbuffer ？ - C/C++ - 清泛网 - 专注C/C++及内核技术
...指向的元素，可以通过mod操作：
sequence mod array length = array index
以上面的ringbuffer为例（java的mod语法）：12 % 10 = 2。很简单吧。
事实上，上图中的ringbuffer只有10个槽完全是个意外。如果槽的个数是2的N次方更有利...
PHP常用API函数用法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...svGs";
$params = explode('&', $url);
print_r($params);
?>
结果：
Array
(
[0] => https://www.tsingfun.com/index.php?m=content
[1] => c=content
[2] => a=edit
[3] => catid=37
[4] => id=289
[5] => pc_hash=c6svGs
)
语法：
explode(separator, string,limit)
...
SEO利器，phpcms 08版HTML文件名功能重返V9 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...$id; //增加自定义HTML文件名支持
找到
$urls = str_replace(array('{$categorydir}','{$catdir}','{$year}','{$month}','{$day}','{$catid}','{$id}','{$page}'),array($categorydir,$catdir,$year,$month,$day,$catid,$id,$page),$urlrule);
修改为
$urls = str_replace(array('{$categorydir}'...
解决Discuz X3日志页面链接乱码错乱问题 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...如下代码正则表达式有漏洞：
$POST['message'] = preg_replace(array(
"/\<div\>\<\/div\>/i",
"/\<a\s+href\=\"([^\>]+?)\"\>/ie"
), array(
'',
'blog_check_url(\'\\1\')'
...
无法将类型“System.Collections.Generic.List<xxxx.Test>”隐式转换...
WCF接口是List型，但客户端需要传入Array型，若传入List型参数，则报错：
无法将类型“System.Collections.Generic.List<MyTestClient.WcfApp.CommonManageSrv.Test>”隐式转换为“MyTestClient.WcfApp.CommonManageSrv.Test[]”。
原因是WCF默认把List类型...
What is the difference between Reader and InputStream?
... When to use read() byte by byte and when to use read(byte[]) array of byte. As I think reading array is always better. then can you give me example where to use read() byte by byte OR read(byte[]) array of byte. OR BufferedInputStream.?
– Asif Mushtaq
...
What is a Manifest in Scala and when do you need it?
...tween Manifest and ClassManifest, you can find an example in the Scala 2.8 Array paper:
The only remaining question is how to implement generic array creation. Unlike Java, Scala allows an instance creation new Array[T] where T is a type parameter. How can this be implemented, given the fact th...
How do I check if a string contains a specific word?
... use the answer in PHP, you can use this function:
function contains($str, array $arr) {
// Works in Hebrew and any other unicode characters
// Thanks https://medium.com/@shiba1014/regex-word-boundaries-with-unicode-207794f6e7ed
// Thanks https://www.phpliveregex.com/
if (preg_match(...
How to extract the n-th elements from a list of tuples?
...for extracting the second element from a 2-tuple list.
Also, added numpy array method, which is simpler to read (but arguably simpler than the list comprehension).
from operator import itemgetter
elements = [(1,1) for _ in range(100000)]
%timeit second = [x[1] for x in elements]
%timeit second =...
Get Image Height and Width as integer values?
...
getimagesize() returns an array containing the image properties.
list($width, $height) = getimagesize("path/to/image.jpg");
to just get the width and height or
list($width, $height, $type, $attr)
to get some more information.
...