Each object has its corresponding state, and each state corresponds to some corresponding behaviors. If an object has multiple states, there will be many behaviors. Then the judgment of these states and the behavior completed according to the states will lead to multiple conditional statements, and if a new state is added, the existing code needs to be changed. This kind of design obviously violates the principle of opening and closing, and the state mode is used to solve such problems.
故事讲述孤寡大半辈子的丁奶奶含辛茹苦拉扯大的两个独生子如龙、如虎都已过不惑之年。忠厚、善良又有些软弱的建筑工人如虎，为了老母和三个孩子，在妻子死后多年，依然孤身一人照顾全家。
人家已经派人来问我的态度了——是不是要报复杨长帆的家人。
李左车满腔期待，心中的感情十分复杂。
何霆却寒声问道：你敢以性命担保？张富一滞，接着点头道：属下敢以性命担保：若是有半句虚言，甘愿受军法处置。
Bloody Monday，是所有死去的人最后说出的话，也是最大的秘密与阴谋。
1973年，某部队通信连里，班长韩琳、新兵姜士安、张雁南在一起学习、生活。出身贫苦的农村兵姜士安在生活上受到了韩琳细致入微的关心，这使他渐渐喜欢上了善良、漂亮的韩琳。从小就娇生惯养的张雁南也在韩琳的帮助下不断的提高着自己的能力。而韩琳在努力学习、刻苦工作的同时对英俊、潇洒的军宣队队员彭湛渐生好感……
The production is not rough, and the actors are OK, but the stock line is completely unknown. The main stage of the clubhouse lacks the changeable and unchangeable disco. The sound effect of the erotic lens is too funny. It can be seen that the attempt to integrate pornography into the plot was unsuccessful. When Lunye saw Feifei walk out of the bathroom and shake the tiger body, it was barely an inner play. The true feelings between the joyous parties are depicted too old-fashioned. Commercial war pornography does not dock at both ends, neither fish nor fowl.
再者人家尹旭没指名道姓，若自己说什么岂非主动承认，自己摸黑自己？尹旭也不理他，躬身向御座上的楚怀王一礼，说道：大王，救援赵国这一战确实困难，却势在必行。
经验值一级的牛头人哀木涕（奶茶 配音）怀抱着勇斗一百级恶龙的英雄梦，却时时遭受被抓去“炖土豆”的威胁。他和同样初级的小伙伴傻馒（YOYO 配音）、劣人（CBI 配音）意外获得了一本名叫《山口山战记》的宝书，拯救世界的重任落在了他的肩上，斗恶龙从梦想变成了现实。虽然跌跌撞撞，哀木涕和小伙伴们还是勇敢踏上了成长之路。
揣测到章平特意来通知，以为出了什么大事，哪里还有心恋战。
《舞蹈风暴 竖屏直拍版》是《舞蹈风暴》的会员衍生节目，以竖屏的形式展示了各位舞者的精彩瞬间。大型舞蹈创编竞技节目《舞蹈风暴》，是一档重建造星秩序，定义青年偶像价值的热血舞蹈综艺，即将引爆2019的最强舞蹈模式
When grandpa came to play, he was angry with grandpa: "why did you go there then? Why didn't you join the red army? If you had joined the army in those days, would my family be like this?"
十一点半的时候游晓来了个电话，给迷迷糊糊的徐风震了一哆嗦。
Impeachment of the queen, asking the emperor to scrap the passbook like snowflakes, flew to the cabinet, the emperor...
我越国在东，反秦的大军从西北归去是正常的，只要我们无异动，想来临江王是不会为难。
原来，永平十八年腊月底的一个夜晚，荣郡王谋反失败后。
Separate the internal representation of the product from the construction process of the product. Q: How can they be separated? Answer: Don't put the construction process of the product in the product class, but the builder class is responsible for the construction process, and the internal representation of the product is put in the product class, so it is not separated.
