亚洲色婷婷综合开心网/第1集/高速云m3u8

更为重要的原因便是闽越和东瓯本身就是越国的巨大的威胁，两族都以越国后裔正统自居，都一直想要返回越国故地。该往街东边去的，再说他们也是坐马车去，而不是走路去，于是急忙掉头上车。这次他没拿第一？那第一是谁？张牧之同样惊讶，他赶紧望向了那个想也没想过的位置。二弟，你有这样一个儿子，也可以含笑九泉了。One problem with the factory method pattern is that the creation of the class depends on the factory class, that is to say, if you want to expand the program, you must modify the factory class, which violates the closure principle. Therefore, from the design point of view, there are certain problems, how to solve them? We use the abstract factory mode to create multiple factory classes, so that once new functions need to be added, we can directly add new factory classes without modifying the previous code. Because the abstract factory is not very easy to understand, let's look at the diagram first, and then it is easier to understand with the code.Compiling: Netease's Outside Compiling Robot/rude