[]自己写了个label继承官方的label，出现了问题，求指导~

package

{

//	import laya.ui.Label;

	import laya.webgl.WebGL;

	

	public class DemoLabel

	{

		public function DemoLabel()

		{

			Laya.init(800, 600, WebGL);

			Laya.stage.bgColor = "#232628";

			

			

//---------------------------------这是用我自己写的label继承了官方的label，问题是label显示不出来，但是也无报错--------------------------------------------			

			var label:Label = new Label();

			var textFormat:TextFormat = new TextFormat("Microsoft YaHei", 50, "#FF00FF", true, true, true);

			label.textFormat = textFormat;

			label.wordWrap = true;

			label.lWidth = 100; 

			label.lHeight = 100;

			label.txt = "Hello";

			label.lx = 100;

			label.ly = 100;

			Laya.stage.addChild(label);

			

			

//---------------------------------这是用官方的api，无问题--------------------------------------------			

//			var label:laya.ui.Label = new laya.ui.Label();

//			label.text = "Hello";

//			label.fontSize = 50;

//			label.color = "#FF00FF";

//			label.wordWrap = true;

//			label.width = 100; 

//			label.height = 100;

//			label.x = 100;

//			label.y = 100;

//			Laya.stage.addChild(label);

		}

	}

}

package

{

	import laya.ui.Label;

	/**

	 * 继承官方的label

	 * @author Administrator

	 * 

	 */	

	public class Label extends laya.ui.Label

	{

		private var _textFormat:TextFormat;

		private var _txt:String;

		private var _lWidth:int;

		private var _lHeight:int;

		private var _lx:int;

		private var _ly:int;

		

		public function Label(text:String="")

		{

			super(text);

			

		}

		

		public function get textFormat():TextFormat

		{

			return _textFormat;

		}

		public function set textFormat(value:TextFormat):void

		{

			_textFormat = value;

			

			font = _textFormat._font;

			fontSize = _textFormat._fontSize;

			color = _textFormat._color;

			bold = _textFormat._bold;

			italic = _textFormat._italic;

			underline = _textFormat._underline;

			padding = String(_textFormat._leftMargin);

//			leftMargin = value.leftMargin;

//			rightMargin = value.rightMargin;

//			indent = value.indent;

//			leading = value.leading;

			

		}

		

		public function get txt():String

		{

			return _txt;

		}

		

		public function set txt(value:String):void

		{

			_txt = value;

			text = _txt;

		}

		

		public function get lWidth():int

		{

			return _lWidth;

		}

		

		public function set lWidth(value:int):void

		{

			_lWidth = value;

			width = _lWidth;

		}

		

		public function get lHeight():int

		{

			return _lHeight;

		}

		

		public function set lHeight(value:int):void

		{

			_lHeight = value;

			height = _lHeight;

		}

		

		public function get lx():int

		{

			return _lx;

		}

		

		public function set lx(value:int):void

		{

			_lx = value;

			x = _lx;

		}

		

		public function get ly():int

		{

			return _ly;

		}

		

		public function set ly(value:int):void

		{

			_ly = value;

			y = _ly;

			

		}

	}

}

package

{

	



	public class TextFormat

	{

		public var _font:String;

		public var _fontSize:int;

		public var _color:String;

		public var _bold:Boolean;

		public var _italic:Boolean;

		public var _underline:Boolean;

		public var _leftMargin:Object;

		public var _rightMargin:Object;

		public var _indent:Object;

		public var _leading:Object;

		

		public function TextFormat(font:String = "方正粗圆_GBK", size:int = 20, color:String = "#FFFF00", 

								   bold:Boolean = false, italic:Boolean = false, underline:Boolean = false, 

								   url:String = null, target:String = null, align:String = null, 

								   leftMargin:Object = null, rightMargin:Object = null, 

								   indent:Object = null, leading:Object = null)

		{

			//Config.fontName, 18, LIST_LABEL_COLOR, 

			//false, false, false, 

			//null, null, TextFormatAlign.LEFT, 

			//0, 0, 0, 0

			_font = font;

			_fontSize = size;

			_color = color;

			

			_bold = bold;

			_italic = italic;

			_underline = underline;

			

//			_url = url;//没用到

//			_target = target;//没用到

//			_align = align;

			

			_leftMargin = String(leftMargin);

			_rightMargin = String(rightMargin);

			_indent = String(indent);

			_leading = String(leading);

			console.log("font==="+_font, "size==="+_fontSize, "color==="+_color, "bold==="+_bold, "italic==="+_italic, 

				"underline==="+_underline,"leftMargin==="+_leftMargin, "rightMargin==="+_rightMargin);

			

		}

		

	}

}