How to deal with the problem that this constructor in Flash cannot express the meaning of parameters

王林
Release: 2024-04-10 10:22:28
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php editor Xiaoxin pointed out that the way to deal with the inability of the this constructor in Flash to express the meaning of parameters is to create a reference to the current object in the constructor and then pass the parameters to other functions or methods. In this way, the current object can be operated by reference and the meaning of the parameters can be transferred. This processing method can effectively solve the problem of being unable to use parameters directly and improve the flexibility and maintainability of the code.

1. Create a new class file Manager and define its package name and class name.

How to deal with the problem that this constructor in Flash cannot express the meaning of parameters

2. Define the constructor Manager, which has two parameters n and s.

How to deal with the problem that this constructor in Flash cannot express the meaning of parameters

3. In the function, assign values ​​to the internal variables nation and sex. The code is as shown in the figure.

How to deal with the problem that this constructor in Flash cannot express the meaning of parameters

4. In the class defined above, a single character is used as a parameter. It is difficult to clearly understand the meaning of the parameter at once. The programmer must read the code in the constructor to know The meaning of the parameters.

How to deal with the problem that this constructor in Flash cannot express the meaning of parameters

5. Is there any way to solve the above problem? In fact, using this can solve it very well. Redefine the constructor Manager and change its parameters to nation and sex.

How to deal with the problem that this constructor in Flash cannot express the meaning of parameters

6. Add this before the variable and rewrite the assignment code.

How to deal with the problem that this constructor in Flash cannot express the meaning of parameters

7. When the name of the member variable and the local variable are the same, the member variable will be blocked, but the member variable can still be accessed using this. The code written in this way will be clear at a glance.

How to deal with the problem that this constructor in Flash cannot express the meaning of parameters

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source:zol.com.cn
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