国产乱伦视频观看

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.接着，又继续介绍余下诸人，或书法或诗词或经学文章，无一不具才名，以前都有耳闻，只想不到出自周家。1960B women: air pistol (10m), sports pistol (25m), air rifle (10m), small caliber optional rifle 3 × 20 (50m), flying saucer double multi-directional, flying saucer multi-directional, flying saucer two-way.Updated June 16延续第一季的故事