<template>
 <div id="bar-echart" ref="barEchartDom" />
</template>

<script>
import * as echarts from 'echarts';
if (this.barDom) {
this.barDom.dispose();
 }
 this.barDom = echarts.init(this.$refs.barEchartDom);
 this.barDom.on('click','yAxis.category'， function (param) {
   console.log(param);
 });
</script>

yAxis: {
  type: 'category',
     data: [],
     triggerEvent: true
   },

<div id="lineBar_chart" @mousedown="handleMousedown"></div>

export default {
? ? ?methods: ?{
? ? ? ? ?handleMousedown(params) {
? ? ? ? ? ? ? //通過(guò)獲取鼠標(biāo)點(diǎn)擊事件，獲取到值
? ? ? ? ? ? ? this.$emit("xData", this.xData);
? ? ? ? ? ?},
? ? ? }
}

<chart-box
  ref="lineBar_chart"
  :id="'lineBar_chart'"
  :setOption="barOptions "
   v-on:xData="handleTooltipClick"
 ></chart-box>

export default = {
  mounted() {
    //需要注意的是，對(duì)返回?cái)?shù)據(jù)進(jìn)行處理
    let data = [] //假設(shè)為返回?cái)?shù)據(jù)
    let series = []
    for(let i of data) { 
        //echart對(duì)數(shù)據(jù)解析時(shí)，只會(huì)顯示value值，但我們可以帶上需要的值
        series.push({ value: i.num，id: i.id... })
    }    

    this.barOptions = {
       tooltips: {
         //tooltips提供的formatter方法，可以自定義數(shù)據(jù)
          formatter: function(params) { 
            val.params = params[0].data
            //此處要注意this指向問(wèn)題
            that.$set('that.$refs.lineBar_chart', 'xData',val)
         }
       }
    };
  },
  methods: {
     handleTooltipClick(val) {
         //根據(jù)獲取到的數(shù)據(jù)進(jìn)行處理啦
        console.log(`圖形的數(shù)據(jù)`，val)
    }
  }
}