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For interface programming, a lot of changes that may occur in the system in the future can be isolated. Why? If the code is written for an interface, he can implement the interface with any new class through polymorphism. However, when the code uses a large number of specific classes, once new specific classes are added, the code must be changed. Violating the opening and closing principle./mountspecialIT男李海涛，性格阳光，长相帅气，为人也实在，是众多女性眼中的优质男。某一天，因为和朋友去夜总会，邂逅了那里的小姐叶子。海涛被叶子的惊人美貌所吸引，进而被她身上那种不同于别人的清冷气息所迷住，他想要进一步了解这个忧郁的女生，而叶子也在和海涛的接触中，发现他和别的靠近她的男人的不同之处。可这时，叶子的好友小玉（隋俊波 饰）疯狂的爱上了海涛，知道海涛心系叶子后，感到了巨大的嫉妒，开始想尽办法破坏二人。I also think the question of commission is the attribute of technical defense. I thought that technical defense was a big move, but seeing the big melee move of the ladder would reduce the damage with the superposition of the opposite defense. It can be seen that it may not matter much. The mage's general attack magic damage will also be reduced by the opposite defense. What exactly is the technical defense going to do?Then look at the source code of activity's dispatchTouchEvent (), getWindow (). SuperDispatchTouchEvent (ev). This method is the method of Window abstract class class. Everyone knows that the implementation class of Window is PhoneWindow, so directly look at the superDispatchTouchEvent () method of PhoneWindow:男主Harit的弟弟Harin爱上了富家女sansanee, 但是sansanee却只是玩弄他，自己一心想找一个英俊又有钱的人，harin 受不了打击，饮枪自尽。Harit十分伤心，从弟弟的日记当中，知道了真相，内心充满了愤怒，一心想找sansanee报仇。soraya是 sansanee的堂妹，从小受到sansanee家的照顾，才能上学，又因为小时候掉进池塘，是sansanee救了她，在sansanee家更像是一名佣人。