https://blog.youkuaiyun.com/csc0211zh-cnhttps://blog.youkuaiyun.com/https://blog.youkuaiyun.com/csc0211/article/details/7611876https://blog.youkuaiyun.com/csc0211/article/details/7611876csc0211Tue, 29 May 2012 10:49:07 +0800https://blog.youkuaiyun.com/csc0211/article/details/7039772https://blog.youkuaiyun.com/csc0211/article/details/7039772csc0211Sun, 04 Dec 2011 18:42:04 +0800https://blog.youkuaiyun.com/csc0211/article/details/6865481https://blog.youkuaiyun.com/csc0211/article/details/6865481csc0211Wed, 12 Oct 2011 10:44:23 +0800https://blog.youkuaiyun.com/csc0211/article/details/6852255https://blog.youkuaiyun.com/csc0211/article/details/6852255csc0211Sat, 08 Oct 2011 13:49:09 +0800https://blog.youkuaiyun.com/csc0211/article/details/6847739https://blog.youkuaiyun.com/csc0211/article/details/6847739csc0211Thu, 06 Oct 2011 19:14:03 +0800https://blog.youkuaiyun.com/csc0211/article/details/6818030https://blog.youkuaiyun.com/csc0211/article/details/6818030csc0211Sat, 24 Sep 2011 20:05:03 +0800https://blog.youkuaiyun.com/csc0211/article/details/6775887https://blog.youkuaiyun.com/csc0211/article/details/6775887csc0211Wed, 14 Sep 2011 20:32:16 +0800https://blog.youkuaiyun.com/csc0211/article/details/6747166https://blog.youkuaiyun.com/csc0211/article/details/6747166csc0211Sun, 04 Sep 2011 15:24:23 +0800https://blog.youkuaiyun.com/csc0211/article/details/6651711https://blog.youkuaiyun.com/csc0211/article/details/6651711csc0211Mon, 01 Aug 2011 18:33:21 +0800https://blog.youkuaiyun.com/csc0211/article/details/6641838https://blog.youkuaiyun.com/csc0211/article/details/6641838csc0211Thu, 28 Jul 2011 19:09:03 +0800https://blog.youkuaiyun.com/csc0211/article/details/6636056https://blog.youkuaiyun.com/csc0211/article/details/6636056csc0211Tue, 26 Jul 2011 21:47:46 +0800https://blog.youkuaiyun.com/csc0211/article/details/6538678https://blog.youkuaiyun.com/csc0211/article/details/6538678csc0211Sat, 11 Jun 2011 22:02:00 +0800https://blog.youkuaiyun.com/csc0211/article/details/6526874https://blog.youkuaiyun.com/csc0211/article/details/6526874csc0211Sun, 05 Jun 2011 13:45:00 +0800https://blog.youkuaiyun.com/csc0211/article/details/6524565https://blog.youkuaiyun.com/csc0211/article/details/6524565csc0211Fri, 03 Jun 2011 13:22:00 +0800https://blog.youkuaiyun.com/csc0211/article/details/6462642https://blog.youkuaiyun.com/csc0211/article/details/6462642csc0211Thu, 02 Jun 2011 23:51:00 +0800https://blog.youkuaiyun.com/csc0211/article/details/6446258https://blog.youkuaiyun.com/csc0211/article/details/6446258csc0211Wed, 25 May 2011 23:42:00 +0800https://blog.youkuaiyun.com/csc0211/article/details/6403848https://blog.youkuaiyun.com/csc0211/article/details/6403848csc0211Sun, 08 May 2011 18:23:00 +0800https://blog.youkuaiyun.com/csc0211/article/details/6372576https://blog.youkuaiyun.com/csc0211/article/details/6372576csc0211Fri, 29 Apr 2011 17:22:00 +0800https://blog.youkuaiyun.com/csc0211/article/details/6300686https://blog.youkuaiyun.com/csc0211/article/details/6300686csc0211Sun, 03 Apr 2011 22:46:00 +0800 
学习Oracle时，你可能会遇到Oracle索引扫描问题，这里将介绍Oracle索引扫描问题的解决方法，在这里拿出来和大家分享一下。根据索引的类型与where限制条件的不同，有4种类型的Oracle索引扫描：
◆索引唯一扫描(index unique scan)
◆索引范围扫描(index range scan)
◆索引全扫描(index full scan)
◆索引快速扫描(index fast full scan)
(1) 索引]]>https://blog.youkuaiyun.com/csc0211/article/details/6283083https://blog.youkuaiyun.com/csc0211/article/details/6283083csc0211Mon, 28 Mar 2011 11:28:00 +0800 
简单工厂模式是类的创建模式，又叫做静态工厂方法模式。就是由一个工厂类根据传入的参量决定创建出哪一种产品类的实例。
为什么工厂模式是如此常用？因为工厂模式就相当于创建实例对象的new，我们经常要根据类Class生成实例对象，如A a=new A() 工厂模式也是用来创建实例对象的，所以以后new时就要多个心眼，是否可以考虑实用工厂模式，虽然这样做，可能多做一些工作，但会给你系统带来更大的可扩展性和尽量少的修改量。
下面我给个实例，简单的了解一下简单工厂。