Flex 4.6字符串日期的加减

? ? ? ? ? ? ? ? ? ? ???Flex?4.6字符串日期的加减

项目需求：1.求出两个字符串日期的差

? ? ? ? ? ? ? ? ? ?2.求出某个字符串日期加上某个数值后的字符串日期

代码如下：

<?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" minWidth="955" minHeight="600">
	<fx:Declarations>
		<!-- 将非可视元素（例如服务、值对象）放在此处 -->
	</fx:Declarations>
	
	<fx:Script>
		<![CDATA[
			import mx.controls.Alert;
			import mx.controls.DateField;
			import mx.formatters.DateFormatter;
		    private function btn_subDate_clickHandler():void{
				var starStrDay:String = "2012-10-21 10:00:00";
				var endStrDay:String = "2012-10-22 10:00:00";
				var starDay:Date = DateFormatter.parseDateString(starStrDay);
				var endDay:Date = DateFormatter.parseDateString(endStrDay);
				var diff:Number = endDay.getTime() - starDay.getTime();
			    Alert.show("相差的日期为" + diff/(1000*24*60*60));  
			}
			
			public function btn_addDate_clickHandler():void{
				
				var starStrDay:String = "2012-10-21 10:00:00";
				var endStrDay:String = "2012-10-22 10:00:00";
				var starDay:Date = DateFormatter.parseDateString(starStrDay);
				var endDay:Date = DateFormatter.parseDateString(endStrDay);
				var diff:Number = endDay.getTime() - starDay.getTime();
				
				
				//添加某段时间
				var day1:Number = (starDay.getTime()+ diff/5*1);
				//把日期时间转换成日期字符串
				var dateFormatter:DateFormatter = new DateFormatter();
				dateFormatter.formatString = "YYYY-MM-DD JJ:NN:SS";
				var strDay1:String = dateFormatter.format(new Date(day1));
				
				Alert.show("显示时间为:"+strDay1);
			}
		
		]]>
	</fx:Script>
	<s:Button x="276" y="71" width="189" height="42" label="求出两个字符串日期的差" click="btn_subDate_clickHandler();"/>
	<s:Button x="223" y="231" width="304" height="42" label="求出某个字符串日期加上某个数值后的字符串日期" click="btn_addDate_clickHandler();"/>
	
</s:Application>