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浅谈服务器单I/O线程＋工作者线程池模型架构及实现要点 - 更多技术 - 清泛...
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这种架构主要是基于I/O多路复用的思想（主要是epoll，select/poll已过时），通过单线程I/O多路复用，可以达到高效并发，同时避免了多线程I/O来回切换的各种开销，思路清晰，易于管理，而基于线程池的多工作者线程，又可以...
Discuz 证件类型下拉框不显示的解决方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
... 0, '证件类型', '身份证 护照 驾驶证等', 0, 0, 0, 0, 0, 0, 0, 'select', 0, '身份证\n护照\n驾驶证', '');
执行后更新缓存再看前台页面，证件那类型下拉框是不是出来了？是不是很神奇？ 前台程序代码没得问题的，放心使用！
找到文...
mysql实现split分割字符串（length, SUBSTRING_INDEX, substring） - 爬虫/...
...符串，从pos起直到结束
以下通过一个例子查看效果：
SELECT SUBSTRING_INDEX(contentid, '-', 1) first, substring(contentid, 2+length(SUBSTRING_INDEX(contentid, '-', 1))) second, contentid FROM `table_xxx`复制代码
Replace all elements of Python NumPy Array that are greater than some value
... I came across. I wonder if there is a big difference between this and the selected answer above. What do you think?
– jonathanking
Feb 18 '18 at 16:44
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How do I run NUnit in debug mode from Visual Studio?
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Be aware that you have to select "Enable Visual Studio Support" on the Settings dialog of NUnit -> IDE Support
– Julio Garcia
Sep 12 '11 at 13:54
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How do I get the width and height of a HTML5 canvas?
...le via .scrollWidth and .scrollHeight:
var canvasElem = document.querySelector('canvas');
document.querySelector('#dom-dims').innerHTML = 'Canvas DOM element width x height: ' +
canvasElem.scrollWidth +
' x ' +
canvasElem.scrollHeight
var canvasContext = canvasElem.getC...
How do I duplicate a whole line in Emacs?
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which breaks down to
C-a: move cursor to start of line
C-SPACE: begin a selection ("set mark")
C-n: move cursor to next line
M-w: copy region
C-y: paste ("yank")
The aforementioned
C-a C-k C-k C-y C-y
amounts to the same thing (TMTOWTDI)
C-a: move cursor to start of line
C-k: cut ("kill") ...
Python list directory, subdirectory, and files
...n i[2]] for i in os.walk('./')] for val in sublist]
# Meta comment to ease selecting text
The outer most val for sublist in ... loop flattens the list to be one dimensional. The j loop collects a list of every file basename and joins it to the current path. Finally, the i loop iterates over all di...
How to create CSV Excel file C#? [closed]
...Object = obj;
var line = String.Join(delimeter, propertyInfos.Select(x => SanitizeValuesForCSV(x.GetValue(localObject, null), delimeter)));
sb.AppendLine(line);
}
return sb.ToString();
}
private static string SanitizeValuesForCSV(object value, s...
How to determine programmatically whether a particular process is 32-bit or 64-bit
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The selected answer is incorrect as it doesn't do what was asked. It checks if a process is a x86 process running on x64 OS instead; so it will return "false" for a x64 process on x64 OS or x86 process running on x86 OS.
Also, it...