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明明应该幸福地生活着，在我的内心深处，却是一起度过青春时代的同级生？廉一直在睡觉。Return context.getNum1 ()-context.getNum2 ();该剧讲述了七七事变爆发，揭开了中华民族全民抗战的大幕。日本侵略军的暴虐淫威彻底激发了全国军民的抗日热情，在此民族存亡的危难关头，五台山地区广大僧众在晋察冀八路军的领导下成立了独立连，和日本侵略者展开了浴血奋战地抗争。八年抗战中，五台山僧人参加抗日1000余人，独立连人员在战斗中伤亡极为惨重。抗战结束，独立连生还的人员当中，有的脱掉军装又投入佛门，有的带着恋人奔赴解放前线。五台山僧众投身抗日战争保家卫国的精神，为我国波澜壮阔的抗战历史，添加了浓墨重彩的一笔。Sourceable source = new Source ();Under the column of "National Learning Platform", there are sub-columns such as "Hubei Learning Platform", "Jiangxi Learning Platform", "Shandong Learning Platform" and "Attachment Learning Platform" according to provinces. These sub-columns focus on the province's study and practice and are being opened one after another.　　没有人知道，满载团圆之梦的列车什么时候能够到来。这是广州交通史上最难忘的一次春运，无数旅客晕倒、哭泣、呐喊。危难时分，数万名公安干警以自己的身体组成人墙来维持秩序，保障安全。11个不眠之夜，他们的眼睛充血了，嘴唇干裂了，声音沙哑了。11个不眠之夜让警民的心紧紧地联系在一起。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.