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Differences between simple factories and factory methods: Simple factories and factory method patterns look very similar, especially specific factories in simple factories and factory methods. Simple factory, all things have been done in one place. However, the factory method creates a framework for subclasses to decide how to implement it. For example, in the factory method, the OrderPizza method creates a general framework to create pizza. The OrderPizza method relies on the factory method to create specific classes and make actual pizza. It is possible to decide what the actual products manufactured are by inheriting the factory. Simple factories do not have this flexibility.About crayfish, Thirteen years is my first year of raising, But the understanding of crayfish has been known since childhood, About '94, Before that, we didn't have any crayfish in our area either. I don't know where it came from. Slowly began to flood, There are crayfish everywhere, At first, I started fishing for lobsters, Is to tie some food with fishing line, Like lobster tails, It's easy to catch, Slowly the lobster got smarter, Begin to add the net copy, With a pole in one hand and a net in the other, Later, this was not easy either. Began to use a small net to put lures in it, Then lift it up, Catching shrimps in cages is an efficient catching method invented in recent years. This method has also resulted in fewer and fewer wild resources. Lobsters used to be very cheap. I remember in 1994, the small ones were generally 20 cents and the large ones were generally 3-40 cents. In recent years, the prices have been rising higher and higher, and shrimps are becoming fewer and fewer. How many people have entered the ranks of lobster cultivation one after another, and how many people have left at a loss.[java] view plain千呼万唤始出来，11月26日撸时代第二季重磅回归！炫酷的战斗画面、热血的原创音乐，绝对良心之作，我们将超越极限，带你进入全新的游戏世界！主角们和大伙一样渡过了一个漫长又愉快的假期，新学期重新聚在一起的主角们也将要开始为自己书写新的篇章了，不过这开始好像并不顺利，开学的前一天晚上提前返校的主角们就遭遇了断网事件，为了能看上自己崇拜的游戏战队的决赛比赛，KYA花招尽出，溜出宿舍。Breaking the Legend of Mozart//260The reporter station also made a brief interview with Zhang Yange, executive editor-in-chief of Interface News. He said that Interface has prepared a bonus of 10 million this year, and there is no ceiling on the bonus for a single group (article) of articles.