Highcharts显示隐藏序列的百分比

// Highcharts配置对象
var chartOptions = {
  // 图表配置项...
  chart: {
    events: {
      load: function() {
        // 初始化按钮
        var button = this.renderer.button('Toggle Series', null, null, null, null, null, null)
          .attr({
            align: 'center',
            'vertical-align': 'top',
            y: 10
          })
          .on('click', function() {
            // 显示隐藏序列
            var series = chart.series;
            var hiddenCount = 0;
            for (var i = 0; i < series.length; i++) {
              if (!series[i].visible) {
                series[i].setVisible(true);
              } else {
                series[i].setVisible(false);
                hiddenCount++;
              }
            }
            // 计算百分比
            var percentage = hiddenCount / series.length * 100;
            // 显示百分比
            alert('Hidden series percentage: ' + percentage.toFixed(2) + '%');
          })
          .add();
      }
    }
  },
  // 其他配置项...
};

// 创建Highcharts图表
var chart = Highcharts.chart('container', chartOptions);