When my application starts up it needs to get an instance of the correct DAL class (currently there are 4) based on what user is logged in. Certain users are pulling down from certain databases.When my application starts up it needs to get a
阅读背景：
如果工厂返回的物体是静态的，它仍被视为工厂吗？
来源：互联网
分享到：
