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On a tireless quest to find his missing daughter Jody, Nelly will go to any length to uncover the truth and he'll discover more about himself and those around him than he could have ever imagined.说着两人走到湖畔的凉亭的栏杆边坐下，已经是夏季，淡淡的湖风吹来，带着几分清凉，很是舒爽。? Generally speaking, the factory mode is suitable: whenever a large number of products need to be created and have a common interface, they can be created through the factory method mode. Of the above three modes, the first cannot create the object correctly if the incoming string is wrong, and the third does not need to instantiate the chemical factory class compared with the second, so in most cases, we will choose the third-static factory method mode. ?Appearance mode focuses on simplifying interfaces and simplifying the dependency relationship between component systems and external client programs.Information Theory: I forget which publishing house it was. It is a very thin book and it is very good. There is a good talk about the measurement of information, the understanding of entropy and the Markov process (there is no such thing in the company now, I'll go back and find it and make it up). Mastering this knowledge, it is good for you to understand the cross entropy and relative entropy, which look similar but easy to confuse. At least you know why many machine learning algorithms like to use cross entropy as cost function ~空巢老人——老侯的退休生活一个有趣片段。老侯退休在家，住在离市中心较远的生活社区。儿子侯飞因为工作原因不能常来看望他。新社区里很多人家都在养狗，而老侯则是个不喜欢狗的人，处处躲避着与狗的正面接触。可是偏偏机缘巧合，一次老侯在散步时突然心脏病发，被一只流浪狗发现，并被人们及时送到医院。老侯与流浪狗不得不生活在一起，给它起名叫“伴儿”。在与“伴儿”的相处中，老侯逐渐发现他对狗也没有想象中那么反感，而且因为“伴儿”，老侯变得开朗了，认识了新朋友，并与住在对门但从未走动过的退休护士——诸葛迎春相互产生了好感。儿子侯飞也因为“伴儿”的到来，与老侯逐渐消除了父子间的隔阂。但就在这时，“伴儿”的主人找来了……因为“伴儿”的去留问题，又发生了很多意想不到的故事，笑料百出。挨坐了一会，就起身告辞了。