99久久精品无码专区

Description5.3 Other Requirements for PCB Design夫人受惊了。一个青春靓丽的都市女孩，走进了南方第五医院，她即将成为一名白衣天使。然而她根本没料到在迈进医院的大门之后，等待着她的将是怎样的坎坷和挫折……　　Tom的家庭也有了变化，父亲Steven被派往上海公干，母亲秀梅辞去了杂志编辑的工作，当特约记者，以方便自己在家照顾两个孩子和家婆，母兼父职的她面对教育孩子的问题，婆媳相处上，时而遇到问题颇为难。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.