B站未满十八岁不可进

Although there are subclasses in java that implement the interfaces of the parent class, But I think javascript can be different from java, It is possible that the parent class in java is an empty class, Subclasses to implement the interface of the parent class, in javascript, I think the common code is completely written in the parent function. If the business logic needs to be changed in the future, or new business logic is added, we can completely use subclasses to rewrite the parent class, so the code has strong scalability and is easier to maintain. Since I am not a professional java, please understand if there is any mistake in describing the knowledge points in java ~ ~For the advantages we mentioned, the second point is that we can understand the virtual agent below. The virtual agent is used to control access to the ontology with high creation cost. It will postpone the instantiation of the ontology until a method is called. For example, if the instantiation of an object is very slow now, it cannot be completed immediately when the web page is loaded. We can create a virtual agent for it and let it postpone the instance of the object until it is needed.直到看到粮仓燃起的灯火时，萧何才暗自松了一口气。当时在那会稽山偏僻的荒野里，我哪里知道越王他好好的不呆在王宫里，跑去那里？这是我能够预料的？徐彤口口声声。Messages forwarded by this machine: PREROUTING--> FORWARD--> POSTROUTING