echarts如何使用formatter修改鼠标悬浮事件信息

formatter: function (params, ticket, callback) {
          console.log(params);
          console.log(ticket);
          var str = '明细：<br/>';
          if(ticket == 'item_操作概况_0'){
            for(var i in data.mustMod){
              str += "模块：" + data.mustMod[i].MODULE_NAME +"&nbsp"+data.mustMod[i].TOTAL +"("+data.mustMod[i].precentAcccess+"%)" + "<br/> " ;
            }
            //alert(data.lessMod[data.lessMod.length-1].totalAccess);
            str += "总数："+ data.must.totalAccess + "&nbsp" +"("+ data.must.totalPrecent+"%)" + "<br/> ";
            }
          if(ticket == 'item_操作概况_1'){
            for(var i in data.moreMod){
              str += "模块：" + data.moreMod[i].MODULE_NAME +"&nbsp"+data.moreMod[i].TOTAL +"("+data.moreMod[i].precentAcccess+"%)" + "<br/> " ;
        }
            //alert(data.lessMod[data.lessMod.length-1].totalAccess);
            str += "总数："+ data.more.totalAccess + "&nbsp" +"("+ data.more.totalPrecent+"%)" + "<br/> ";
            }
          if(ticket == 'item_操作概况_3'){
            for(var i in data.lessMod){
              str += "模块：" + data.lessMod[i].MODULE_NAME +"&nbsp"+data.lessMod[i].TOTAL +"("+data.lessMod[i].precentAcccess+"%)" + "<br/> " ;
            }
            //alert(data.lessMod[data.lessMod.length-1].totalAccess);
            str += "总数："+ data.less.totalAccess + "&nbsp" +"("+ data.less.totalPrecent+"%)" + "<br/> ";

          }
          if(ticket == 'item_操作概况_2'){
            for(var i in data.normalMod){
              str += "模块：" + data.normalMod[i].MODULE_NAME +"&nbsp"+data.normalMod[i].TOTAL +"("+data.normalMod[i].precentAcccess+"%)" + "<br/> " ;
            }
            //alert(data.lessMod[data.lessMod.length-1].totalAccess);
            str += "总数："+ data.normal.totalAccess + "&nbsp" +"("+ data.normal.totalPrecent+"%)" + "<br/> ";

          }
          //callback(ticket, str);
          return str;
        }
      },

$.ajax({
      url: "../../basexxxx/getxxxxxxx",
      type: "post",
      data: {
        param: param
      },
      success: function (data) {
        option.series[0].data = xxxxxxxxxxx;//百分比
        // option.series[1].data = xxxxxxxxxxx;
        option.xAxis[0].data = xxxxxxxxxxxx;//项点名称
 
        riskNames = xxxxxxxxxx;
        //违反次数
        breakCount = xxxxxxxxx;//xx次数
        //检查次数
        checkCount = xxxxxxxxxx;
        //描述
        riskLevelDetails = xxxxxxxxxxx;
        //项点id集合
        riskIds = data.xxxxxxxxx;
        // 使用刚指定的配置项和数据显示图表。
        myChart.setOption(option);
 
      }
    });

<div >
  <div id="main" ></div>
</div>

 // 基于准备好的dom，初始化echarts实例
  var myChart = echarts.init(document.getElementById('main'));
  var breakCount = [];
  var checkCount = [];
  var riskLevelDetails = [];
  var riskNames = [];
  var riskIds = [];
  var option = {
    color: ['#3398DB'],
    tooltip: {
      trigger: 'axis',
      axisPointer: { // 坐标轴指示器，坐标轴触发有效
        type: 'shadow' // 默认为直线，可选为：'line' | 'shadow'
      },
      //悬浮提示
      formatter: function (params) {
        for (var i = 0, l = option.xAxis[0].data.length; i < l; i++) {
          if (option.xAxis[0].data[i] == params[0].name) {
            var val3 = riskLevelDetails[i] || 0;
            // toFixed(1)精确小数点
            return '项点名称：' + riskNames[i] + '<br>'
              + '违反占比：' + option.series[0].data[i].toFixed(1) +'%'+ '<br>'
              + riskLevelDetails[i];
          }
        }
      }
    },
    grid: {
      left: '3%',
      right: '4%',
      bottom: '3%',
      containLabel: true
    },
    xAxis: [{
      type: 'category',
      data: [],
      axisTick: {
        alignWithLabel: true
      },
      axisLabel: {
        interval: 0,
        rotate: 40
      }
    }],
    yAxis: [{
      type: 'value'
    }],
    series: [{
      name: '违反占比',
      type: 'bar',
      barWidth: '60%',
      itemStyle: {
        normal: {
          //可根据柱状图量的大小进行判断变换颜色
          color: function (params) {
            if (params.data < 60) {
              return 'green'
            } else {
              return '#c23531'
            }
            return '#ccc'
          },
          label: {
            show: true,
            position: 'top',
            formatter: function (params) {
              //单个柱状图表头展示
              for (var i = 0, l = option.xAxis[0].data.length; i < l; i++) {
                if (option.xAxis[0].data[i] == params.name) {
                  var val1 = breakCount[i] || 0;
                  var val2 = checkCount[i] || 0;
                  return '{color1|' + val1 + '}/{color2|' + val2 + '}';
                }
              }
            },
            rich: {
              color1: {
                color: '#c23531'
              },
              color2: {
                color: '#42a1fe'
              }
            },
            textStyle: {
              color: '#333'
            }
          }
        }
      },
      data: []
    }
    ]
  };

//点击事件
  myChart.on('click', function (params) {
    console.log(params);
    var index = params.dataIndex;
    console.log("下标："+xxx);
    console.log("项点id："+xxxx);
    console.log("名称："+params.name);
    console.log("南京东机务段单位代码："+xxxxx);
  });