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http://vip.stock.finance.sina.com.cn/portfolio/main.php
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posted @ 2015-04-02 16:39
litaolitao
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转自http://code.csdn.net/news/2823898开源软件现在成为整个互联网时代的支撑技术,你可能已经无法离开由开源软件构建起来的网络世界了。下面我们就来看看一些最重要的开源技术。7. 为互联网而生的操作系统LinuxLinux 是一款免费的操作系统,诞生于1991年,用户可以通...
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posted @ 2015-02-12 11:31
litaolitao
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Following 8 sections are available in the man page.General commandsSystem callsC library functionsSpecial files (usually devices, those found in /dev)...
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posted @ 2014-11-26 17:48
litaolitao
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http://www.bjjs.gov.cn/publish/portal0/tab3573/info72866.htm?COLLCC=275479112&
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posted @ 2014-06-08 12:05
litaolitao
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look at http://www.xaprb.com/blog/2006/07/04/how-to-exploit-mysql-index-optimizations/prior to MySQL 5.5, MYISAM is default engine. InnoDB becomes def...
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posted @ 2014-05-23 17:57
litaolitao
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quoted from http://en.wikipedia.org/wiki/File:LAMP_software_bundle.svg
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posted @ 2014-05-23 17:56
litaolitao
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http://www.slideshare.net/https://www.digitalocean.com/community/tagshttp://db-engines.com/en/http://www.tiobe.com/index.php/content/paperinfo/tpci/in...
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posted @ 2014-05-23 16:09
litaolitao
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look at:https://www.digitalocean.com/community/articles/a-comparison-of-nosql-database-management-systems-and-models
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posted @ 2014-05-23 14:45
litaolitao
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look at:https://www.digitalocean.com/community/articles/sqlite-vs-mysql-vs-postgresql-a-comparison-of-relational-database-management-systems
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posted @ 2014-05-23 14:44
litaolitao
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摘自百度知道。时钟周期 时钟周期也称为振荡周期,定义为时钟脉冲的倒数(可以这样来理解,时钟周期就是单片机外接晶振的倒数,例如12M的晶振,它的时间周期就是1/12 us),是计算机中最基本的、最小的时间单位。 在一个时钟周期内,CPU仅完成一个最基本的动作。对于某种单片机,若采用了1MHZ...
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posted @ 2014-05-21 14:20
litaolitao
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