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After the ball is thrown into the basket and approved by the referee, it is counted as a score. 2 points can be scored for the input inside the 3-point line; 3 points can be scored if you put on the outside of the 3-point line, and the ball scored by stepping on the 3-point line with your heel or toe is regarded as a 2-point ball. One point from the free throw. 　　Visitor pattern decouples the data structure from the operations acting on the structure, making the operation set relatively free to evolve. Visitor pattern is suitable for systems with relatively stable data structure and easy change of algorithm. Because visitor mode makes it easy to increase algorithm operation. If system data structure objects are easy to change and new data objects are often added, visitor mode is not suitable. The advantage of visitor mode is that it is easy to add operations, because adding operations means adding new visitors. Visitor mode centralizes the relevant behaviors into one visitor object, and its changes do not affect the system data structure. Its disadvantage is that it is difficult to add new data structures. -From Encyclopedia圣旨诰封玄武候祖、父闲散爵位，并诰赠曾祖爵位。　　来到这里的死者各种各样，有的已经接受了自己的“死亡”，而有的还没能理解现状。滴滴无意中来到了一个小店，原来店主是圣司的爷爷。认识了圣司之后，听到了圣司对自己理想的追求之后，也激发了滴滴对自己理想的追求之念。当圣司离开了到意大利学习做小提琴时，滴滴决定要专心写作。当滴滴完成了作品之后，她发现原来自己高估了自己，就这样她选择继续考高中，这时她非常想念圣司。Abnormal problem: The promotion information of commodities shall be subject to the information in the "Promotion" column of the commodity details page; The specific selling price of the goods shall be subject to the price on the order settlement page; If you find any abnormality in the selling price or promotion information of the active goods, it is recommended to contact the seller for consultation before purchasing.Lins Concubine 12