鄙人flex小试身手，做了一个计算器

<?xml version="1.0" encoding="utf-8"?>
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
			   xmlns:s="library://ns.adobe.com/flex/spark"
			   xmlns:mx="library://ns.adobe.com/flex/mx"
			   width="528" height="285" minWidth="955" minHeight="600">

		<fx:Declarations>
			<!--<s:RemoteObject id="obj" destination="product"/>-->
		</fx:Declarations>
	<fx:Style>
		#calc_label{
			fontSize:22; 
			fontWeight:bold; 
			fontFamily:"宋体";
			color:#00e3e3;
		}
	</fx:Style>
	<fx:Script>
		<![CDATA[
			import flashx.textLayout.formats.Float;
			
			import mx.collections.ArrayCollection;
			import mx.controls.Alert;
			[Bindable]
			public var cards:ArrayCollection = new ArrayCollection(  
				             [ {label:"加",data:1},{label:"减",data:2},{label:"乘",data:3},{label:"除",data:4}]
								
			);  

			protected function button1_clickHandler(event:MouseEvent):void
			{
//				opr.selectedItem
				var oper:int=opr.selectedItem.data;
				var ii1:Number,ii2:Number;
				var result:String;
				try{
					ii1=parseFloat(i1.text);
					ii2=parseFloat(i2.text);
				}catch(e:Error){
					Alert.show(e.message+"出错了");
					return;					
				}
				if(isNaN(ii1)||isNaN(ii2)){
					Alert.show("输入不合法");
					return;	
				}
				switch(oper)
				{
					case 1:
					{
						result=(ii1+ii2)+"";
						break;
					}
					case 2:
					{
						result=(ii1-ii2)+"";
						break;
					}
					case 3:
					{
						result=(ii1*ii2)+"";
						break;
					}
					case 4:
					{
						if(ii2==0){
							Alert.show("除数不合法");
							i2.text="";
							return;	
						}
						result=(ii1*1.0/ii2)+"";
						break;
					}
						
				}
				resultL.text=result;
			}
			
		]]>
	</fx:Script>
	<s:Label x="67" y="62" width="230" height="36" text="计算器" id="calc_label"/>
	<s:TextInput id="i1" x="67" y="104" width="65"/>
	<s:TextInput id="i2" x="224" y="102" width="70"/>
	<s:Label x="325" y="104" width="173" height="22" id="resultL" />
	<s:Button id="result" x="185" y="165" label="计算结果" click="button1_clickHandler(event)"/>
	<s:ComboBox id="opr" x="152" y="103" width="51" dataProvider="{cards}" selectedIndex="0"/>
</s:Application>

截图如下

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as3编译后swf文件下载地址：http://download.csdn.net/detail/yx511500623/5809291