How to use Flash prototype chain inheritance function

What php editor Xinyi introduces to you today is Flash prototype chain inheritance. In JavaScript, one way to implement inheritance is prototype chain inheritance, and Flash ActionScript can also implement class inheritance through the prototype chain. In Flash, classes also have prototype attributes, and their usage is very similar to JavaScript. This article will introduce the implementation method of Flash prototype chain inheritance and give specific examples for reference. I hope it can help everyone better understand the inheritance mechanism of Flash.

1. Create a class named Manager, the code is as shown in the figure.

2. Define an attribute named nation in the class, with the initial value being [Chinese].

3. Create a new Flash document and open the action panel. Create an instance of the Manager class and reference it with the variable m.

4. Create a new subclass Worker and create the constructor of the subclass in the class.

5. Use the Manager class as the prototype of the Worker class in the fla file, and use code to change Worker.prototype so that it contains a Manager object.

6. At this time, the relationship between the Manager class and the Worker class is similar to an inheritance relationship, that is, the prototype chain.

7. Create an instance of the Worker class. This instance will inherit from the prototype chain of the Manager class.

8. Finally, use instance w to access the nation attribute, and the value of nation can be output in the window. Although nation is not a w object, but a part of the Manager object, because w inherits the Manager class, its value can still be displayed.

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