加急，列柱图，柱顶怎么显示，投票数，在线等。。。
<mx:ColumnChart id="myChart" dataProvider="{expenses}" width="776" height="414" extendLabelToEnd="true" initialize="myChart_initializeHandler(event)" x="0" y="1" color="#03FBE7">
<mx:series >
<mx:ColumnSeries xField="messageType" yField="count" displayName="数量" mouseOver="columnseries1_mouseOverHandler(event)" />
</mx:series>
<mx:horizontalAxis>
<mx:CategoryAxis
dataProvider="{expenses}"
categoryField="messageType"
/>
</mx:horizontalAxis>



</mx:ColumnChart>
flex?图表
[解决办法]
ColumnSeries 标签添加： labelFunction和 labelPosition属性，具体查看api