FREEGAYFUCKTVGV/第12集/高速云

5. Zhang Jie小葱也着忙，遂不敢再动。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 EncyclopediaCC1, …随着时间推移，《寻秦记》的字数越来越多，相信这部小说的平均订阅也会越来越高。　 由好莱坞著名导演刘易斯·迈尔斯通执导的经典反战题材影片《西线无战事》，改编自德国作家雷马克的同名小说。这部堪称电影史上“最伟大的反战电影”之一的影片，一举荣获1930年第3届奥斯卡金像奖最佳影片、最佳导演和最佳编剧提名。导演用简明精练的镜头再现了惨绝人寰的战争实况，也以细腻流畅的手法写活了保罗爱国迷梦的幻灭。影片结尾处保罗捉蝴蝶被子弹击中的镜头，已成为电影史上的经典瞬间。