简单工厂Factory
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667package net.util;/** * @项目名：spring2.5 * @包名：net.util * @文件名：FactoryDemo.java * @日期：Jun 21, 2011 4:37:02 PM * @备注：工厂模式 * @作者：apple