用于初始化图表的配置选项。
Highcharts.setOptions({
});
Highcharts.mapChart({
用于动态更新更新图表实例，详情 类参考。
The pixel width of charts exported to PNG or JPG. As of Highcharts 3.0, the default pixel width is a function of the chart.width or exporting.sourceWidth and the exporting.scale.
