大约有 49,000 项符合查询结果(耗时:0.0452秒) [XML]

https://stackoverflow.com/ques... 

Rails: How to change the title of a page?

...In rails 3 content_for is smart enough to work correctly with caching (see selected answer). – opsb Nov 15 '11 at 10:41 4 ...
https://stackoverflow.com/ques... 

Real-world examples of recursion [closed]

...( because you want to stop this fast ). After processing a given person, select the person from the front of the queue and apply immunization if needed. Get all their contacts previously unvisited, and then test to see if they're infected. Repeat until the queue of infected people becomes 0, and...
https://stackoverflow.com/ques... 

How to retrieve a file from a server via SFTP?

...mote-username", "remote-host" ); { // "interactive" version // can selectively update specified known_hosts file // need to implement UserInfo interface // MyUserInfo is a swing implementation provided in // examples/Sftp.java in the JSch dist UserInfo ui = new MyUserInfo(); ses...
https://stackoverflow.com/ques... 

What RSA key length should I use for my SSL certificates?

...they seemed vague or out dated so I did a little digging. Bottom line the selected answer is correct use "2048-bit keys... longer is meaningless". Increasing the bit length to 4096 adds a potentially meaningful load to your server (depending on your existing load) while offering basically an insig...
https://stackoverflow.com/ques... 

Converting many 'if else' statements to a cleaner approach [duplicate]

...s not what you need here, this isn't modelling a finite state machine it's selecting a different conversion strategy based on the input type so the strategy pattern is more appropriate. – Paolo Jan 3 '13 at 13:55 ...
https://www.tsingfun.com/it/cpp/1947.html 

进程间通信(IPC)的几种方式 - C/C++ - 清泛网 - 专注C/C++及内核技术

...,而且只能被显式删除,而且不能使用SOCKET的一些机制,例如select,epoll等. FAQ4: WINDOS进程间通信与LINUX进程间通信的关系? 答: 事实上,WINDOS的进程通信大部分移植于UNIX, WINDOS的剪贴板,文件映射等都可从UNIX进程通信的共享存储中找到...
https://www.tsingfun.com/it/da... 

mysql实现split分割字符串(length, SUBSTRING_INDEX, substring) - 数据...

...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` mysql split 分割字符串
https://www.tsingfun.com/it/te... 

phpcms标签向导有什么用? - 更多技术 - 清泛网 - 专注C/C++及内核技术

...014_website,调取最新的5条新闻,并按倒序排列 {pc:get sql="SELECT title,url FROM v9_news order by id desc" num="5" dbsource= "1014_website" } {loop $data $n $r} <li><a href="{$r['url']}" title="{$r['title']}">{$r['title']}</a></li> {/loop} {/pc} 3、以碎片方式 {pc:block ...
https://www.tsingfun.com/it/tech/1384.html 

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...

... 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...
https://www.tsingfun.com/it/tech/1715.html 

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...