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Have enough time to attend MDT meetings;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.这论讲是论不下去了，都论到他身上来了，实在让他气闷不已。(3) If the delay requirement is high, the optional time relay or electric time relay can be selected; If the delay requirement is not high, the air damping time relay can be selected.新秀艺人遥在深夜被家里传来的脚步声所困扰，跟电视综艺节目认识的心灵研究家小田岛商量这件事后所展开的恐怖的故事。 虽然至今为止还不太为人所知，但“咒怨”是参考实际发生的事情为而誔生的。此次的连续剧系列中，首次揭开在源头的“诅咒之家”中发生的许多憎恶的事件。然后，随着从那里蔓延开来的“连锁的诅咒”。这群人有办法逃离鬼屋的诅咒吗？这栋被下咒的房子以前又出过什么可怕的事？