var currencyAxis = new YAHOO.widget.NumericAxis();
var categoryAxis = new YAHOO.widget.CategoryAxis();
//chartContainerId为图表DOM元素id
var mychart = new YAHOO.widget.ColumnChart(chartContainerId, DataSource,
{
series: seriesDef,
xField: "month",
yAxis: currencyAxis,
xAxis: categoryAxis
});
}