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In the above code, we use three functions, order500, order200, orderNormal to handle its own business logic, If the current own function cannot handle things, We pass it to the following function to handle it. By analogy, Until there is a function that can handle him, Otherwise, the responsibility chain mode will leave the chain directly, telling that it cannot be processed and throwing an error prompt. Although the above code can be used as the responsibility chain mode, we can see from the above code that the Order500 function depends on functions such as Order200, so there must be this function, which also violates the open-closed principle in object-oriented. Let's continue to understand writing flexible and detachable responsibility chain nodes.Public Context (State state) {Although I don't know how to refuse the family's demands without a bottom line, on the other hand, I can see the side of Fan Shengmei's responsibility, can't I?靠山的村子猎户多，每当旧历年终，这里总要举行一年一度的祭天谢典，感谢老天爷让大家在即将过去的一年满载而归。乐梅和表哥宠达瞒着家人跑到雾山村来看热闹。为救一只白狐——猎人们祭天的猎物而受了伤。柯起轩在杨万里帮她包扎伤口，看到了她手腕上的梅花胎记，认出她就是和自己从小订了亲的袁乐梅。却不敢相认。十八年前，因为水灾，袁家和柯家一起逃难，途中遭劫，反抗混乱中袁怀玉死了，而刺死他的那把刀柄却在柯士鹏手上。映雪认定了就是柯士鹏杀死了自己的丈夫，乐梅的父亲。霸气女神宁若笙与男神苏凛的婚姻正经历着“七年之痒”，此时怀上二胎的宁若笙认为丈夫苏凛对自己的感情日渐冷淡，赌气的她产生了离婚的念头，两人的婚姻也迎来了前所未有的危机。在30天的离婚冷静期中，两人回忆起了大学时期相识相知相爱的点点滴滴，才恍然大悟，爱情的基石是相互理解，彼此包容，而这场轰轰烈烈的离婚闹剧最终败给了爱情........人到中年的杨树是单身女老板唐红的私人司机，带着18岁的女儿杨树苗，青春期的她任性强硬，和杨树冲突不断。唐红一直没有结婚，虽然身边有土老板孟来财追求，但她爱着杨树，对杨树苗也关爱有加。碍于身份的考虑，正直老实的杨树一直不愿意接受唐红的爱意。在女儿设计下，杨树结识了颇像前妻的年轻女孩顾菁菁，两人互生好感。杨树就这样夹在了唐红和顾菁菁之间，一幕幕喜剧故事上演。后来，前妻的回国，让杨树放下了对前妻的执念，在与唐红的相处中杨树看清自己的感情，勇敢面对她的爱，两人最终走到一起；顾菁菁在与孟来财相识后，惺惺相惜的二人也产生真挚感情，最终四人各自情归所属。周青连忙摆手，说道：无妨，无妨。