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Disadvantages: Low EQ板栗觉得有道理。20First, open Example 1? You can also create a new file by creating and saving the file "My Dynamic Block" in the. Draw an elevation mark in the space according to the size shown in the figure.Understanding Factory Method Patterns: All Factory Method Patterns are used to create objects. The factory method pattern encapsulates the object creation process by letting subclasses decide what the created object is. The factory method pattern has the following roles: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.Baidu Internet Disk Link, a Machine Brushing Tool: