饼图tooltip

@{
    ViewBag.Title = "pie";
}
 
<h2>pie</h2>
 
<div id="main" style="width: 1000px;height:800px;"></div>
<script type="text/javascript">
    // 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'), 'shine', { width:  });
 
    option = {
        tooltip: {
            trigger: 'item',
            //formatter: "{a} <br/>{b}: {c} ({d}%)"
            formatter: function (params) {
                var s = params.name + '<br />';
                for (var i = ; i < option.series.length; i++) {
                    s += option.series[i].name + ': ' + option.series[i].data[params.dataIndex].value + '(' + (option.series[i].data[params.dataIndex].value / jehj[i] * ).toFixed() + '%）<br />';
                }
                return s;
            }
        },
        legend: {
            orient: 'vertical',
            x: 'left',
            data: ['直达', '营销广告', '搜索引擎', '邮件营销', '联盟广告', '视频广告', '百度', '谷歌', '必应', '其他']
        },
        series: [
            {
                name: '2016年',
                type: 'pie',
                selectedMode: 'single',
                radius: [, '30%'],
 
                label: {
                    normal: {
                        position: 'inner',
                        formatter: "{b}({d}%)"
                    }
                },
                labelLine: {
                    normal: {
                        show: false
                    }
                },
                data: [
                    { value: , name: '直达' },
                    { value: , name: '邮件营销' },
                    { value: , name: '联盟广告' },
                    { value: , name: '视频广告' },
                    { value: , name: '百度' },
                    { value: , name: '谷歌' },
                    { value: , name: '必应' },
                    { value: , name: '其他' }
                ]
            },
            {
                name: '2017年',
                type: 'pie',
                radius: ['40%', '55%'],
 
                data: [
                    { value: , name: '直达' },
                    { value: , name: '邮件营销' },
                    { value: , name: '联盟广告' },
                    { value: , name: '视频广告' },
                    { value: , name: '百度' },
                    { value: , name: '谷歌' },
                    { value: , name: '必应' },
                    { value: , name: '其他' }
                ],
                label: {
                    normal: {
                        //position: 'inner',
                        formatter: "{b}: {c} ({d}%)"
                    }
                }
            }
        ]
    };
    var jehj = new Array();
    for (var i = ; i < option.series.length; i++) {
        var hj = ;
        for (var j = ; j < option.series[i].data.length; j++) {
            hj += option.series[i].data[j].value;
        }
        jehj[i] = hj;
    }
    myChart.setOption(option);
 
</script>