FLEX程序设计--联合数组

联合数组:在其他语言就是哈希表.在ActionScript3.0里就是Object的一个实例.联合数组使用名称元素来代替数字下标,该名称被称为关键字或者属性.

1.创建联合数组.

格式:var 变量名:Object={关键字1:值1,关键字2:值2,...};

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var 联合数组变量:Object=new Object();

联合数组变量.关键字1=值1;

联合数组变量.关键字2=值2;

联合数组变量.关键字3=值3;

...

联合数组变量.关键字n=值n;

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2.访问联合数组元素

2.1.使用关键字访问联合数字元素

格式:联合数组变量.关键字;

2.2使用"[]"操作符访问

格式:联合数组变量["关键字"];

3.遍历联合数组

格式:for(var 变量:String in 联合数组名)

{

联合数组[变量];

}

package  
{
    import flash.display.Sprite;
    
    public class AssociativeArrayExample extends Sprite
    {
        public function AssociativeArrayExample()
        {
            MoreArray1();
        }
        
        private function CreateArray1():void
        {
            // 创建数组
            var object:Object = {software:"flash", company:"Adobe", version:"9.0"};
            // 输出结果
            trace("software的值为：" + object["software"]);
        }
        
        private function CreateArray2():void
        {
            // 创建数组
            var object:Object = new Object();
            
            // 赋值
            object.software = "flash";
            object.company = "Adobe";
            object.version = "9.0";
            
            // 输出结果
            trace("company的值为：" + object["company"]);
        }
        
        private function CreateArray3():void
        {
            // 创建数组
            var object:Object = new Object();
            
            // 赋值
            object["software"] = "flash";
            object["company"] = "Adobe";
            object["version"] = "9.0";
            
            // 输出结果
            trace("version的值为：" + object["version"]);
        }
        
        private function ReadArray1():void
        {
            // 创建数组
            var object:Object = new Object();
            
            // 赋值
            object["software"] = "flash";
            object["company"] = "Adobe";
            object["version"] = "9.0";
            
            // 访问关联数组
            for(var key:Object in object)
            {
                trace(object[key]);
            }
        }
        
        private function ReadArray2():void
        {
            // 创建数组
            var object:Object = new Object();
            
            // 赋值
            object.software = "flash";
            object.company = "Adobe";
            object.version = "9.0";
            
            // 访问关联数组
            for each(var item:Object in object)
            {
                trace(item);
            }
        }
        
        private function MoreArray():void
        {
            // 创建数组
            var array:Array = new Array();
            
            // 赋值
            array[0] = ["Flash", "Adobe", "9.0"];
            array[1] = ["Java", "Sun", "6.0"];
            array[2] = ["VS.Net", "Microsoft", "2005"];
            array[3] = ["OICQ", "腾讯", "2007"];
            
            // 输出
            trace(array[3][1]);
        }
        
        private function MoreArray1():void
        {
            // 创建数组
            var array:Array = new Array();
            
            // 赋值
            array["flash"] = ["Flash", "Adobe", "9.0"];
            array["java"] = ["Java", "Sun", "6.0"];
            array[".net"] = ["VS.Net", "Microsoft", "2005"];
            array["qq"] = ["OICQ", "腾讯", "2007"];
            
            // 输出
            trace(array["java"][1]);
        }
        
        private function CopyArray():void
        {
            
        }
    }
    
}