银子 ’s 博客

package
{
	import flash.display.Sprite;
	import flash.display.DisplayObject;
	import flash.events.MouseEvent;
	import flash.geom.Point;
	import flash.filters.DropShadowFilter;
 
	public class ClassDrag extends Sprite
	{
		private var _red:Sprite;
		private var _blue:Sprite;
		private var _green:Sprite;
		private var _white:Sprite;
 
		// 被拖动对象原始坐标
		private var _startingLocation:Point;
 
		// 构造函数
		public function ClassDrag()
		{
			init();
		}
 
		// 初始化
		private function init():void
		{
			_red = new Sprite();
			createRectangle(_red, 0xff0000, 10, 10, 20, 20);
			_blue = new Sprite();
			createRectangle(_blue, 0x0000ff, 10, 35, 20, 20);
			_green = new Sprite();
			createRectangle(_green, 0x00cc00, 10, 60, 20, 20);
			_white = new Sprite();
			createRectangle(_white, 0xf0f0f0, 40, 10, 300, 300, false);
		}
 
		// 创建矩型
		private function createRectangle(rectangle:Sprite, color:uint, x:uint, y:uint, width:uint, height:uint, drag:Boolean = true):void
		{
			rectangle.graphics.beginFill(color);
			rectangle.graphics.drawRect(x, y, width, height);
			rectangle.graphics.endFill();
			addChild(rectangle);
 
			if(drag)
			{
				// 侦听事件
				rectangle.addEventListener(MouseEvent.MOUSE_DOWN, pickup);
				rectangle.addEventListener(MouseEvent.MOUSE_UP, place);
			}
		}
 
		// 拖动
		private function pickup(event:MouseEvent):void
		{
			// 保存原始坐标
			_startingLocation = new Point();
			_startingLocation.x = event.target.x;
			_startingLocation.y = event.target.y;
 
			// 开始拖动
			event.target.startDrag();
			// 加上阴影
			event.target.filters = [new DropShadowFilter()];
			// 拖动对象最前显示
			setChildIndex(DisplayObject(event.target), numChildren - 1);
		}
 
		// 拖动结束
		private function place(event:MouseEvent):void
		{
			// 拖动结束
			event.target.stopDrag();
			// 清除阴影
			event.target.filters = null;
 
			// 检测是否已经移动到目标区域
			if(event.target.dropTarget == _white)
			{
				var color:uint;
				switch(event.target)
				{
					case _red: color = 0xff0000; break;
					case _blue: color = 0x0000ff; break;
					case _green: color = 0x00cc00; break;
				}
 
				// 重新创建目标区域
				_white.graphics.clear();
				createRectangle(_white, color, 40, 10, 300, 300, false);
			}
 
			// 拖放对象回到原位
			event.target.x = _startingLocation.x;
			event.target.y = _startingLocation.y;
		}
	}
}

package
{
	import flash.display.Sprite;
	import flash.events.MouseEvent;
 
	public class ClassGraphics extends Sprite
	{
		private var mySprite:Sprite;
 
		// 构造函数
		public function ClassGraphics()
		{
			this.mySprite = new Sprite();
			addChild(this.mySprite);
			this.mySprite.graphics.beginFill(0x336699);
			this.mySprite.graphics.drawRect(0, 0, 550, 400);
			this.mySprite.graphics.endFill();
			this.mySprite.addEventListener(MouseEvent.MOUSE_DOWN, spriteMouseDown);
			this.mySprite.addEventListener(MouseEvent.MOUSE_UP, spriteMouseUp);
		}
 
		// 鼠标按下事件
		private function spriteMouseDown(event:MouseEvent):void
		{
			this.mySprite.graphics.lineStyle(1, 0, 1);
			this.mySprite.graphics.moveTo(mouseX, mouseY);
			this.mySprite.addEventListener(MouseEvent.MOUSE_MOVE, spriteMouseMove);
		}
 
		// 鼠标离开事件
		private function spriteMouseUp(event:MouseEvent):void
		{
			this.mySprite.removeEventListener(MouseEvent.MOUSE_MOVE, spriteMouseMove);
		}
 
		// 移动事件
		private function  spriteMouseMove(event:MouseEvent):void
		{
			this.mySprite.graphics.lineTo(mouseX, mouseY);
		}
	}
}

package com
{
	import flash.display.Sprite;
	import flash.events.MouseEvent;
	import flash.display.StageScaleMode;
	import flash.display.StageAlign;
	import fl.controls.Label;
	import fl.controls.TextInput;
	import fl.controls.TextArea;
	import fl.controls.Button;
 
	public class ClassMain extends Sprite
	{
		private var userName:TextInput;
		private var userNameLabel:Label;
		private var message:TextArea;
		private var messageLabel:Label;
		private var button:Button;
 
		// 构造函数
		public function ClassMain()
		{
			stage.scaleMode = "noScale";
			stage.align = StageAlign.TOP_LEFT;
 
			this.initMc();
		}
 
		// 一点准备工作
		private function initMc():void
		{
			this.userName = new TextInput();
			addInput(this.userName, "userName", 50, 10, 200, 18);
 
			this.userNameLabel = new Label();
			addLabel(this.userNameLabel, "呢称:", 10, 10, 40, 18);
 
			this.message = new TextArea();
			addTextArea(this.message, "message", 50, 40, 400, 100);
 
			this.messageLabel = new Label();
			addLabel(this.messageLabel, "留言:", 10, 40, 40, 18);
 
			this.button = new Button();
			addButton(this.button, "提交", 350, 150);
		}
 
		// 创建Label
		private function addLabel(label:Label, text:String, x:uint, y:uint, width:uint, height:uint):void
		{
			label.text = text;
			label.move(x, y);
			label.setSize(width, height);
			addChild(label);
		}
 
		// 创建文本框
		private function addInput(input:TextInput, name:String, x:uint, y:uint, width:uint, height:uint):void
		{
			input.name = name;
			input.move(x, y);
			input.setSize(width, height);
			addChild(input);
		}
 
		// 创建文本域
		private function addTextArea(textArea:TextArea, name:String, x:uint, y:uint, width:uint, height:uint):void
		{
			textArea.name = name;
			textArea.move(x, y);
			textArea.setSize(width, height);
			textArea.condenseWhite = true; 
			addChild(textArea);
		}
 
		// 创建按钮
		private function addButton(button:Button, value:String, x:uint, y:uint):void
		{
			button.label= value;
			button.move(x, y);
			addChild(button);
		}
	}
 
}

package
{
	import flash.display.MovieClip;
	import flash.text.TextField;
	import flash.text.TextFormat;
	import flash.text.TextFieldAutoSize;
	import flash.events.*;
	import flash.utils.Timer;
 
	public class ClassTyped extends MovieClip
	{
		var txt:TextField = new TextField();
		var txtF:TextFormat = new TextFormat();
		var cont:String = new String();
		var i:uint = 0;
 
		// 构造函数
		public function ClassTyped()
		{
			cont = "打字效果测试. By Silver...........";
			txtF.font = "微软雅黑";
			txtF.size = 14;
			txtF.color = 0x669900;
			txt.defaultTextFormat = txtF;
 
			var timer:Timer = new Timer(120, cont.length);
			timer.addEventListener(TimerEvent.TIMER, timerHandler);
			timer.start();
		}
 
		private function timerHandler(event):void
		{
			txt.selectable = false;
			txt.appendText(cont.charAt(i));
			txt.autoSize = TextFieldAutoSize.LEFT;
			txt.wordWrap = true;
			txt.width = 200;
			addChild(txt);
			txt.x = (txt.stage.stageWidth - txt.width) / 2;
			txt.y = (txt.stage.stageHeight - txt.height) / 2;
			i++;
		}
	}
}

my $text = "hello world!";
my $where = index($text, "wor");
print $where;#本例输出6

my $text = "hello world!";
my $where = rindex($text, "l");
print $where;#本例输出9