同时显示Line和Column两种Chart
<mx:LineChart id="linechart" color="0x323232" width="100%" height="100%"showDataTips="true" dataProvider="{initLocator.chartArrayCollection}"dataTipFunction="renderLineTips"><mx:horizontalAxis> <mx:CategoryAxis categoryField="xAxis" title="Date"/> </mx:horizontalAxis> <mx:series> <mx:ColumnSeries yField="milestoneValue" maxColumnWidth="1" /> <mx:LineSeries yField="yAxis" form="curve" displayName="Effort"/> </mx:series></mx:LineChart>