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学习大麻将合法化，约瑟夫，一个失败的企业家，决定在他的家人和朋友的帮助下，改变他父亲的犹太屠夫店，并在法国开设第一家大麻咖啡店。I think that for today's him, the topic of the details of the battle at position 142 can also be stopped. I comforted him and finished the interview after a few words.他身后还跟着一个小尾巴，小尾巴身后还跟着个大尾巴。The above is only a model of "Long En" bicycle, If you need to generate other types of bicycles, Other subclasses can be written. The most important advantage of factory mode is that some of the same methods can be implemented. We can write code in the parent class for these same methods. If we need to implement specific business logic, we can rewrite the parent class's methods in the subclass to implement our own business logic. In terms of professional terms, there are two points: First, weaken the coupling between objects and prevent code duplication. Instantiating a class in a method eliminates repetitive code. Second: Repetitive code can be written in the parent class. Subclasses inherit all member attributes and methods of the parent class. Subclasses only focus on implementing their own business logic.状元村却是全省粮食生产第一村，而且村办企业也名列前茅，但是一个奇怪的现象却出现了，那就是增产不增收，村民们的实际经济效益远不如从前，村办企业也陷进捉襟见肘的窘迫境地。状元村的未来究竟向何处发展？以刘逵为代表的状元村也面临着生死攸关的选择，刘逵和石福一样也面临着性格的根本转变。凤凰村的党支部书记兼村委会主任孙天生精明能干，喜欢博览群书，再加上灵活敏捷的头脑和不断获取的大量信息，就在状元村埋头只顾生产粮食的时候，他已经意识到中国农业要想有巨大发展，要想在未来经济全球化的市场竞争中占有一席之地，必须增加中国农业的高科技含量，必须联系千家万户搞中国特色的大农业。还是在中国申请加入世界贸易组织的进程中，孙天生就和北方农业大学和农业科学研究院有各种各样的科技试验合同Know the principle + can change the model details man: read the paper, read the paper, read the paper! Read source code read source code read source code! The source code reading here is not limited to reading the source code of one framework. You can look at other excellent frameworks. For the implementation mechanism of the same layer and the same function, you can think more, summarize more and write more. After a long time, there will definitely be gains. The purpose of reading the paper is to directly obtain the original author's thoughts, avoiding obtaining second-hand thoughts from blog interpretation of the paper. After all, everyone's understanding is different, and it is not necessarily right. Read it first, then look at other understandings, and discuss with Daniel more, thus broadening the thinking.