云飞扬的ITblog

类型共享（static）属性和方法是不能被子类所继承，就是说静态变量和静态函数都是不能被继承的。

ActionScript 3允许对象类型定义与类型共享型属性和方法同名的私有型或方法。就是说可以定义静态变量和非静态变量，而且命名可以相同，函数也是类似的

举例子test目录下创建SimpleObject.as

package test
{
public class SimpleObject
{
public static var member1:String = "Panda";
public static function testMethod1():String
{
return "static testMethod1";
}

public var member1:String = "Tiger";
public function testMethod1():String
{
return "instance testMethod1";
}
}
}

在创建MeanObject.as继承SimpleObject

package test
{
public class MeanObject extends SimpleObject
{
public function runTest():String
{
var output:String = "*** Static Property and Method Output:\n";
output += "SimpleObject.member1 = " + SimpleObject.member1; //调用静态变量member1输出Panda
output += "\n";
output += "SimpleObject.testMethod1() = " + SimpleObject.testMethod1();//调用静态函数testMethod1()输出static testMethod1
output += "\n";
output += "*** Instance Property and Method Output:\n";
output += "super.member1 = " + super.member1;//继承调用父类的变量member1
output += "\n";
output += "super.testMethod1() = " + super.testMethod1();//继承调用父类的函数testMethod1()
output += "\n";
return output;
}
}
}
flex中程序

xmlns:mx="http://www.adobe.com/2006/mxml"

viewSourceURL=""
horizontalAlign="center" verticalAlign="middle"
width="100%" height="100%"
>

import test.MeanObject;
private function showProperties():void
{
var obj1:MeanObject = new MeanObject();
panelPropertyArea.text = obj1.runTest();
}
]]>

height="75%" width="75%"
paddingTop="5" paddingLeft="5" paddingRight="5" paddingBottom="5">
text="Program Execution Result: "/>

说明本文章是http://www.ajaxcn.net的作者读书笔记，书名《adobe flex3 程序设计指南》

结果如下：
*** Static Property and Method Output:
SimpleObject.member1 = Panda
SimpleObject.testMethod1() = static testMethod1
*** Instance Property and Method Output:
super.member1 = Tiger
super.testMethod1() = instance testMethod1

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