日本无码av特级**片

The fundamental reason for using design patterns is to adapt to changes, improve code reuse rate, and make software more maintainable and scalable. In addition, the following principles should be followed when designing: single responsibility principle, open and closed principle, Richter substitution principle, dependency inversion principle, interface isolation principle, composite reuse principle and Dimit principle. Each design principle is described below.杨府后花园小亭中，竹椅上，杨长帆抿着雪茄，向迪哥提出了这个概念。该剧讲述了唐代仪凤4年。西域守备狄仁杰奉唐皇之命，带副将马仁义劝降西凉黑鹰大将军欧阳烈。临行前，唐皇密诏两封告知狄仁杰与马仁义；楚风烈若降便宣金诏，封他为西域长风大将军，并令其即刻带领十万降军赴阳关抵御来犯之敌。楚风烈若不降，便使用银诏：发动西域守备军二十万官兵将其灭之。因为幼时师傅为她缝过一件彩衣，所以取了一个霓裳这样优美的名字。啊？哈哈，几人再一次相视大笑。The above code: We use a parameter FN to pass it in, and if there is an instance of result, we will return it directly. Otherwise, the current getInstance function calls FN, and this pointer points to this FN function. After that, the return is saved in the result. Now we can pass a function in, whether it is to create div or iframe. In short, if this is the case, we can use getInstance to get their instance objects.