Drilldown for grouped column chart in highcharts
问题 I'm trying to make drilldown for a grouped column chart in highcharts. My chart is here: $(function () { // Create the chart $('#container').highcharts({ chart: { type: 'column' }, title: { text: 'Basic drilldown' }, xAxis: { type: 'category', categories: [ "2011-12", "2012-13", "2013-14", "2014-15", "2015-16" ] }, legend: { enabled: false }, plotOptions: { series: { borderWidth: 0, dataLabels: { enabled: true, } } }, series: [ { "name": "First", "data": [ 40351.62, 51506.83, 68566.23, 80596