1, first, define a basic class, define the method of the class with the "Class" command.
When you create a basic class, note that the definition of the class must be in an external class script file (new-as file), with the file extension "as", and an emphasis on "three unification": the class name, the class script filename, and the constructor name in the class.
Methods: File-New-actionscript file, save, filename named "Chinese. as". Then add the following code inside:
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The name here should be the same as the file name. I've talked about it before.
Class Chinese {
A skin color property is set, its value is a string type, and the default value is "Yellow"
public var skin color: String = "yellow";
Set a hair color property whose value is a string type and the default value is black
public var hair color: String = "BLACK";
Set up a method function called "Marry wife", return type is string type.
Public Function Marry wife (): String {
Return ("Lift the sedan chair, drink beer, invasion");
}
}
2, use a class, you must first import this class. General Use Import * * * * *;
Method: Create a new Flash file and save it in the same directory you just created. Then add the following code inside:
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This sentence is a personal habit, you can not add, after the same ...
/*http://www.jb51.net Cloud-dwelling Community * *
/*
Note: Since Flash MX, flash officially supports Unicode encoding, so we can directly use the Chinese name as the variable name.
*/
The introduction of the "Chinese" class, note: The introduction name must be the same as the class name and the class file name, also note that when the class is imported, there is no () behind the class.
Import Chinese;
To establish a "Chinese" class example: Liu MoU
var Hbro: Chinese = new Chinese ();
Output object instance "Liu" 's "Hair" property
Trace ("Hbro Hair color is:" +hbro. Hair color);
Output object instance "Liu" 's "Skin Color" property
Trace ("Hbro skin color is:" +hbro. skin color);
Output object instance "Liu MoU" the value returned by the "Year of the Year" note that after trace, if followed by the method, it cannot be added after the method (). Resolution
Trace ("Hbro Marry Wife:" +hbro.)
/*http://www.jb51.net Cloud-dwelling Community * *
In this way, the creation and application of a simple class is successful.
3, the use of private properties. Here, we are in sync with inheritance. Now we have a new "Chongqing people. As" class, and then add the following code:
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Class Chongqing people extends Chinese {
public var personality: String = "like to eat chili";
Private var feature: String;
Public function outer (): String {
this. Features = "Handsome, suave, fascinated by thousands of girls";
Return (this. feature);
}
}
Note that the third line is private. Generally speaking, it is necessary to use a common function to connect private properties when using private properties. Note that inheritance uses Exstends.
Class A extends B means, a inherits from B, as if a large business owner had died, his inheritance had to be inherited by his son. The meaning here is that a inherits the properties of B. For example, the boss surnamed Huang, his son must follow the surname yellow a reason.
Next, let's look at the application of inheritance first. Replace the following code in the file created in step two:
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/*http://www.jb51.net Cloud-dwelling Community * *
/*
Note: Since Flash MX, flash officially supports Unicode encoding, so we can directly use the Chinese name as the variable name.
*/
The introduction of the "Chinese" class, note: The introduction name must be the same as the class name and the class file name, also note that when the class is imported, there is no () behind the class.
Import Chinese;
To establish a "Chinese" class example: Liu MoU
var Hbro: Chinese = new Chinese ();
Output object instance "Liu" 's "Hair" property
Trace ("Hbro Hair color is:" +hbro. Hair color);
Output object instance "Liu" 's "Skin Color" property
Trace ("Hbro skin color is:" +hbro. skin color);
Output object instance "Liu MoU" the value returned by the "Year of the Year" note that after trace, if followed by the method, it cannot be added after the method (). Resolution
Trace ("Hbro Marry Wife:" +hbro.)
Define a Chongqing man named Sand.
var sand: chongqing people = new Chongqing people ();
The character of the output sand
Trace ("Character of the Sand": + sand, personality);
In order to test whether the people of Chongqing have succeeded in inheriting from the parents "Chinese", test the color of the sand
Trace ("Skin color of the sand:" + sand. skin color);
Trace ("The appearance of the sand:" + sand, appearance ());
/*http://www.jb51.net Cloud-dwelling Community * *
Pay attention to the difference between ...
The newly added sections are as follows:
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Define a Chongqing man named Sand.
var sand: chongqing people = new Chongqing people ();
The character of the output sand
Trace ("Character of the Sand": + sand, personality);
In order to test whether the people of Chongqing have succeeded in inheriting from the parents "Chinese", test the color of the sand
Trace ("Skin color of the sand:" + sand. skin color);
Trace ("The appearance of the sand:" + sand, appearance ());
Press the Ctrl+enter key to see the effect.
Download the above source address:
Http://img.jb51.net/downtools/classandexstends.rar
