option = {
legend: {}, tooltip: {}, dataset: { source: }, xAxis: { type: 'category', axisLabel: { rotate: 60, interval: 0 } }, yAxis: {}, series: [ { "type": "bar" }, { "type": "bar" }, { "type": "bar" }, { "type": "bar" }, { "type": "bar" }, { "type": "bar" }, { "type": "bar" }, { "type": "bar" } ]}