[Properties]——资源配置文件·基本功能

public class propority {
	public static void main(String[] args) {
		Properties pro=new Properties();//创建对象
		pro.setProperty("driver", "orcle,driver");//存储
		pro.setProperty("url", "jdb:orcle,driver");
		pro.setProperty("user", "score");
		pro.setProperty("pwd", "tiger");
		//获取
		String url=pro.getProperty("ur2", "test");//getProperty(String key, String defaultValue)
		System.out.println(url);
	}
}