flex计算器小程序可以实现一般的功能.doc

?xml version=1.0 encoding=utf-8? s:Application xmlns:fx=/mxml/2009 creationComplete=applicationl_creationCompleteHandler() xmlns:s=library:///flex/spark xmlns:mx=library:///flex/mx minWidth=400 minHeight=300 s:layout s:VerticalLayout horizontalAlign=center verticalAlign=middle/ /s:layout fx:Script ![CDATA[ import mx.events.FlexEvent; private var hasCilckFloat:Boolean=false; private var hasOver:Boolean=false; private var num:Number private var cal:String; protected function applicationl_creationCompleteHandler():void { result.text=0; hasOver=false; hasCilckFloat=false; } private function addNumber(str:String):void{ if(result.text==NaN){ result.text=str; } else if(result.text==0){ result.text=str; } else if(str==0result.text==0) { result.text=str; } else if(hasOver==true){ result.text=str; } else { if(result.text.length=13){ return }else{ result.text=result.text+str; } } } private function saveNumber(str:String):void{ if(str!=-){ cal=str; num=Number(result.text); result.text=0; hasOver==true }else{ if(result.text==0){ result.text=-; return; }else{ num=Number(result.text); cal=str; result.text=0; return; } } } private function addFloat():void{ if(hasCilckFloat==true){ return; }else{ result.text=result.text+.; hasCilckFloat=true; } } private function pingFang():void{ result.text=String(Math.sqrt(Number(result.text))) } private function chengFang():void{ result.text=String((Number(result.text))*(Number(result.text))); } private function fanShu():void{ if(result.text==0){ result.text=NaN }else{ result.text=String(1/Number(result.text)); } } private function doCal():void{