Flash V2组件基础件开发：ActionRegistry消息分派器。

Flash V2组件基础件开发：ActionRegistry消息分派器。(3)                 else
                    trace ("the listener not implement "+type+" handle");
            }
        }
        else
        {
            trace ("action "+type+" no listeners");
        }
    }

    function set action (str:String) : Void
    {
        if (str != undefined)
        {
            var delimiter_pos = str.indexOf (":");
            if (delimiter_pos > 0)
            {
                var action_type = str.substr (0, delimiter_pos);
                var action_body = str.substr (delimiter_pos+1);
                if (action_type.length > 0)
                {
                    //trace ("call listeners handler of action {"+action_type+"}");
                    var args = parse_body (action_type, action_body);