192168161进入设置向导

}马文与杨欣本是夫妻，有一个十岁的儿子马虎。夫妻二人年轻气盛，谁也不肯迁就谁，导致离婚。又由于实际的原因，俩人只有一套住房，所以离婚后依然住在一起。儿子马虎归杨欣抚养。马文是软件工程师，虽然也和各类女孩子约会，但心中却隐隐约约地存了和杨欣复婚的想法。但杨欣却打算和另一离异男士李义结婚。马文一直冷眼旁观前妻和李义的感情发展，他总觉得杨欣不会真的和李义结婚，因为在他内心看来，自己要比李义强很多。杨欣最终还是和李义结婚，由于李义没有房子，所以，他住了进来。李义虽没有什么大本事大能耐，但心思缜密。他有意化解马文的敌意，让马文认清现实，并着手帮助马文重新找到幸福生活。他为马文介绍了很多有房子的离婚女人，但最终由于种种原因，一个都没有成。最后，李义想到自己的姐姐李芹，李芹虽然比马文年长，但风韵犹存，还是一个“富婆”。李芹有过一任丈夫，夫妻感情不错，后来由于第三者插足，李芹无法忍受，提出离婚。丈夫王大飞是一成功男士，一直对李芹心怀愧疚，所以尽量在物质上满足她，离婚的时候不仅把房产留给她，而且还给了她一大Defines an interface for creating objects, allowing subclasses to decide which class to instantiate. Factory methods delay the instantiation of a class to its subclasses.Similar to the development of children from appearance and color to older children, they can be classified according to concepts. For example, if they know the concept of "food", no matter what kind of vegetables they look like, they should be classified into one category. The classification of biology has also developed in this way. The earliest method is to identify and distinguish species according to phenotypic characteristics, and to classify them step by step according to the degree of phenotypic similarity, so as to establish a classification system that is easy to retrieve. This is the principle of phenotypic classification. However, the problem of phenotypic classification is that it is difficult to reveal the essential laws of things. Many creatures with very different shapes may have kinship relationships. For example, the online sentence "When I knew sunflowers belonged to Compositae, I collapsed" is what it means.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.