用于初始化图表的配置选项。
Highcharts.setOptions({
});
Highcharts.stockChart({
用于动态更新更新图表实例，详情 类参考。
The HTML of the cluster point's in the tooltip. Works only with marker-clusters module and analogously to pointFormat.
The cluster tooltip can be also formatted using tooltip.formatter callback function and point.isCluster flag.
tooltip.formatter
point.isCluster
