<?xml version="1.0"?>
<!-- charts/VerticalLineChart.mxml -->
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
<mx:Script>
<!--[CDATA[
import mx.collections.ArrayCollection;
[Bindable]
public var expenses:ArrayCollection=new ArrayCollection([{Month: "Jan", Profit: 2000, Expenses: 1100}, {Month: "Feb", Profit: 1800, Expenses: 1055}, {Month: "Mar", Profit: 1200, Expenses: 800}, {Month: "Apr", Profit: 1400, Expenses: 900}, {Month: "May", Profit: 1400, Expenses: 1150}, {Month: "Jun", Profit: 1340, Expenses: 600}, {Month: "Jul", Profit: 1600, Expenses: 950}, {Month: "Aug", Profit: 1500, Expenses: 1140}, {Month: "Sep", Profit: 1800, Expenses: 1200}, {Month: "Oct", Profit: 2000, Expenses: 1280}, {Month: "Nov", Profit: 2400, Expenses: 1300}, {Month: "Dec", Profit: 1500, Expenses: 500}]);
]]-->
</mx:Script>
<mx:Panel title="Vertical Line Chart">
<mx:LineChart id="myChart"
dataProvider="{expenses}"
showDataTips="true">
<mx:verticalAxis>
<mx:CategoryAxis dataProvider="{expenses}"
categoryField="Month"/>
</mx:verticalAxis>
<mx:series>
<mx:LineSeries xField="Profit"
yField="Month"
displayName="Profit"
sortOnXField="false"/>
<mx:LineSeries xField="Expenses"
yField="Month"
displayName="Expenses"
sortOnXField="false"/>
</mx:series>
</mx:LineChart>
<mx:Legend dataProvider="{myChart}"/>
</mx:Panel>
</mx:Application>
这个DEMO可以创建一个全新的树型结构，让我感到奇怪的是，虽然我用XML而不是XMLListCollection/ArrayCollection作为Tree的数据源，但对XML的更新依然会在Tree中反映出来——这似乎和Flex的文档有冲突，下面是引用Flex文档的一段内容：
Raw objects are often not sufficient if you have data that changes, bec ......
1、在flex中，不能重新定义input()或unput()，但是能重新定义YY_INPUT，它是flex调用的从输入文件中读取文本的宏。flex缓冲区，被定义为YY_BUFFER_STATE类型。例程yy_create_buffer(FILE*,size0)生成指定大小的flex缓冲区，通常是YY_BUF_SIZE，用于读取stdioFILE。对yy_swithc_to_buffer(flexbuf)的调用告诉扫描程序读取相� ......
