大约有 15,000 项符合查询结果(耗时:0.0261秒) [XML]

https://www.tsingfun.com/it/cpp/650.html 

NASM x86汇编入门指南 - C/C++ - 清泛网 - 专注C/C++及内核技术

...串的长度以确保它不会在以后被改变,但是,$-hello又是怎么算出字符串的长度的呢?这里,当NASM遇到’$’的时候,它用这行的开始的位置来取代它,也就是上一行结束时的位置,然后再减去hello的起始位置,便得到了hello...
https://stackoverflow.com/ques... 

How does Google Instant work?

...ss\\x3dg style\\x3d\\x22margin-left:16px\\x22\\x3e\\x3ch3 class\\x3d\\x22r hcw\\x22\\x3e\\x3ca href\\x3d\\x22http://blog.stackoverflow.com/category/podcasts/\\x22 class\\x3dl onmousedown\\x3d\\x22return rwt(this,\\x27\\x27,\\x27\\x27,\\x27\\x27,\\x275\\x27,\\x27AFQjCNGnAJSxUa4GLcg-E7PNvIFmPC53gQ\\x2...
https://www.tsingfun.com/it/opensource/451.html 

Linux下部署企业级邮件服务器(postfix + dovecot + extmail) - 开源 & Gith...

...如果碰到少别的模块都可以用查找链接这种方法解决,找不到就是没安装,一个是模块,一个是库) /usr/local/mailgraph_ext/qmonitor-init start //启动ok /var/www/extman/daemon/cmdserver -d //打开系统信息 加入开机启动脚本中,达到开机启动的...
https://www.tsingfun.com/it/tech/1215.html 

构建高并发高可用的电商平台架构实践 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...应用场景非常多,比如系统的监控动态的实时曲线绘制,手机消息的推送,web实时聊天等。 实时推送有很多技术可以实现,有Comet方式,有websocket方式等。 Comet基于服务器长连接的“服务器推”技术,包含两种: Long Polling:...
https://www.tsingfun.com/it/cp... 

内存管理内幕:动态分配的选择、折衷和实现 - C/C++ - 清泛网 - 专注C/C++及内核技术

...放 obstack 的全部内容。可以用其他的值,但是它们通常不怎么实用。 使用池式内存分配的益处如下所示: 应用程序可以简单地管理内存。 内存分配和回收更快,因为每次都是在一个池中完成的。分配可以在 O(1) 时间内完成...
https://stackoverflow.com/ques... 

Unique combination of all elements from two (or more) vectors

... what you are after > expand.grid(a,b) Var1 Var2 1 ABC 2012-05-01 2 DEF 2012-05-01 3 GHI 2012-05-01 4 ABC 2012-05-02 5 DEF 2012-05-02 6 GHI 2012-05-02 7 ABC 2012-05-03 8 DEF 2012-05-03 9 GHI 2012-05-03 10 ABC 2012-05-04 11 DEF 2012-05-04 12 GHI 2012-05-04 13 ABC 20...
https://stackoverflow.com/ques... 

What killed my process and why?

...imestamps – gukoff Nov 22 '17 at 11:05 If you only want to see a list of recently killed process on a server, try usin...
https://stackoverflow.com/ques... 

Fast way of counting non-zero bits in positive integer

... b'\x01\x02\x02\x03\x02\x03\x03\x04\x02\x03\x03\x04\x03\x04\x04\x05' b'\x01\x02\x02\x03\x02\x03\x03\x04\x02\x03\x03\x04\x03\x04\x04\x05' b'\x02\x03\x03\x04\x03\x04\x04\x05\x03\x04\x04\x05\x04\x05\x05\x06' b'\x01\x02\x02\x03\x02\x03\x03\x04\x02\x03\x03\x04\x03\...
https://stackoverflow.com/ques... 

What is the maximum possible length of a .NET string?

...of a string. The test starts ...now: s.Length = 1000000000 at 08/05/2019 12:06 Exception of type 'System.OutOfMemoryException' was thrown. at 08/05/2019 12:06. After decimation, the value of Increment is 100000000. Exception of type 'System.OutOfMemoryException' was thrown. a...
https://stackoverflow.com/ques... 

How to calculate age (in years) based on Date of Birth and getDate()

...---------------------------------- ---------------- ---------------- 17.767054 18 17 (1 row(s) affected) UPDATE here are some more accurate methods: BEST METHOD FOR YEARS IN INT DECLARE @Now datetime, @Dob datetime SELECT @Now='1990-05-05', @Dob='...