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Although the above code can meet the requirements, it is not easy to expand and difficult to read. If I want one or two conditions in the future, if I want to recharge 300 yuan successfully, I can win the 150 yuan red envelope, then I have to change the code inside at this time, so the coupling between business logic and code is relatively high, and I accidentally correct the wrong code. At this time, we try to use the responsibility chain mode to transfer objects in turn to realize it.在任务中，托卡与父母的记忆，与老朋友时浩没有达成的约定邂逅，思念起了古美的遭遇。在各自的交叉中，托卡导出的答案是——？这人就是我们的男主角—蒲少杰，少杰带着一面希冀，在雪山上寻寻觅觅，所找寻的却是他一生的最爱，只可惜天意弄人，少杰还未找到爱人的踪影，雪山却突然崩塌，少杰霎时被困于风雪之中，生命危在旦夕；正当少杰正感绝望之际，抬头一望，似有所发现，面上竟泛起一阵笑容。蒲氏企业由民营小企业做起，终成为一间上市的大公司，蒲西虽然已成富甲一方的大富豪，但他尖酸刻薄、凡事向钱看的性格却仍然改不了，其妻子杜鹃妻凭夫贵，一副暴发户的嘴脸，亦惹人讨厌；少杰乃蒲西的独子，自命富豪第二代，自少恃宠生骄，少杰虽然生性善良聪明，却是一名超级败家的阔少爷，蒲西虽一直欲将家业交给少杰去打理，但少杰却袛顾吃喝玩乐，追求心中所谓的理想爱情，令蒲西头痛不已。少杰只身跑到哈尔滨滑雪度假，竟遇上了生命里的克星——姚开心。姚开心自少父母双亡，与二叔姚军相依为命；军表面是一糊涂汉子，其实是深藏不露的武功高手，开心幼承庭训，亦练就一身好武功； 开心也如一般的少女，梦想找到如意郎君，为免一身武功会把心仪的男生吓走，开心从不轻易把武功显露出来。在越国尚未染指或者插手的时候，土地和实际利益的优惠，或许还能让英布动心。To add one more word, it's not why you open the post, it's just convenient for you, me and him. Since you open the post, it's a two-way communication.