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If I were to implement a pizza ordering system, I would definitely write the code like this, because this kind of code can be written subconsciously without consuming our brains. However, take a closer look at this code: the purpose of this method is to order pizza. However, the code for ordering pizza also needs knowledge about the production of pizza. This method must know all pizza. Worse still, if the types of pizza are to be expanded or pizza with poor sales volume are to be deleted in the future, then the code for ordering pizza will be modified. It looks very bad and should be revised. Our first step must be to separate the code for producing Pizza from the code for ordering pizza, because you should not let the code for ordering Pizza know the logic for producing pizza, but should hand over the logic for producing Pizza to a special type. In this way, we can cope with future changes-if we want to add or delete pizza, we can directly modify the producer of pizza without affecting the logic of ordering pizza."Waking up" is not a simple game project, it is intended to help the experiencer think ahead of time about how to face the death of himself and his relatives through "life education".TCP Flood讲述了一个被拐买的女孩子历经磨难，凭借真情和信念改变命运、奋斗人生的感人故事。人生境遇一波三折，但人间真情和坚强信念如石缝下的小草生生不息。讲述在同一天、同一时间失去最爱的人的叁名女子姜夏莉(강하리)、金银香(김은향)、闵德莱(민들레)，在没有背景、金钱，也没人能依靠的世界上，如何互相依靠、成长的故事。镜花堂掌权人祝满山把家业发扬光大视为毕生成就，满山发妻已逝，有两子两女。长子有成是父亲生意上的左右手，被视为镜花堂的继承人。二子有业，好逸恶劳，不喜欢受束缚，认为有大哥协助父亲打理生意，自己全心周游列国玩乐。三女明蕙，具有才能，但因父亲认为男尊女卑，所以明蕙不能插手家业。明蕙侍父至孝，满山却一直对她比较冷淡。四女明敏，活泼好动，思想前卫，经常挺身而出反对当时社会不公平事，要为弱势社群争取福利。羊历3513年，青青草原上，羊羊族群已经十分兴旺发达。在羊羊一族里面已经有小镇，有学校，有超市，有美容院，所有羊羊族群的羊都幸福快乐地生活。可是，在对岸的森林里，灰太狼带着他的妻子红太狼却对着一群群的肥羊咽着口水，当灰太狼的身影再次出现在石桥的栏栅前，羊羊族群...