韩剧一边做饭一边燥的

Reference to my equipment: weightlifting belt, 80 yuan, double-row cowhide 7mm, original price about 300 yuan, because it is XL code of US, special price. Too long, he made two holes. Strength lifting belt, 10mm double row尹旭便按照既定的安排，前来见嬴子夜。Now modify the base image on which Dockerfile's FROM is based above:The above is only a model of "Long En" bicycle, If you need to generate other types of bicycles, Other subclasses can be written. The most important advantage of factory mode is that some of the same methods can be implemented. We can write code in the parent class for these same methods. If we need to implement specific business logic, we can rewrite the parent class's methods in the subclass to implement our own business logic. In terms of professional terms, there are two points: First, weaken the coupling between objects and prevent code duplication. Instantiating a class in a method eliminates repetitive code. Second: Repetitive code can be written in the parent class. Subclasses inherit all member attributes and methods of the parent class. Subclasses only focus on implementing their own business logic.