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The difference between them is that each policy class in the policy mode is equal and parallel, and there is no connection between them. Therefore, customers must be familiar with the functions of these policy classes so that customers can actively switch algorithms at any time. However, in the state mode, the behavior corresponding to the state and the state has long been encapsulated, and the switching between states has long been stipulated to be completed. The "change of behavior" occurs within the state mode. For customers, they do not need to know these details. This is what state patterns do海瑞点了点头，看也不看杨寿全一眼，率领村民队伍朝田地进发。黄瓜笑道：想的倒好。之后，她接了一个个人们热议的案子，发生了一系列故事。A visionary king in Swedish history said that from the perspective of daily application, decimal is more convenient than decimal. Before his death, he had imagined that the decimal system would be replaced by the decimal system within his jurisdiction.一个富裕的墨西哥家庭决定在他们的牧场周围建一堵墙，以防止市民偷取他们的井水。方刚（陆斌 饰）、萧佛（蒋健 饰）和沈金明（王劫 饰）是少管所里新来的三位少年犯，方刚持刀伤人，本性不改，萧佛小偷小摸，惹是生非，只有沈金明是一心一意在此改过自新的。一场意外中，方刚谎称自己吞了剪刀，企图找机会逃跑，然而，当他看到冯队长是如何为了救他而费劲了心机后，方刚被感化了。 女记者谢洁心（朱曼芳 饰）察觉到了表面上吊儿郎当的萧佛内心里其实是个非常讲义气的好孩子，她采访了萧佛，挖掘了深藏在他背后的痛苦往事。谢洁心将这些写进了自己的新闻稿中，希望能够向社会发出提醒，她还找来了萧佛的父亲，希望他们父子能够破镜重圆。