vue导入百度ECharts图形标并使用

<template>
    <div>
        <h3>数据报表</h3>
        <!-- 面包屑导航 -->
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>数据统计</el-breadcrumb-item>
            <el-breadcrumb-item>数据报表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区域 -->
        <el-card>
            <div id="main" style="width:750px;height:400px;"></div>
        </el-card>
    </div>
</template>
    
<script>
//导入echarts
import echarts from 'echarts'
//导入lodash
import _ from 'lodash'
export default {
  data() {
    return {
      //需要跟请求的折线图数据合并的options
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  created() {},
  async mounted() {
    //在页面dom元素加载完毕之后执行的钩子函数mounted
    // 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'))
    //准备数据和配置项
    //发送请求获取折线图数据
    const { data: res } = await this.$http.get('reports/type/1')

    if (res.meta.status !== 200) {
      return this.$message.error('获取折线图数据失败')
    }

    //合并res.data和this.options
    const result = _.merge(res.data,this.options)

    // 使用获取的数据展示图表
    myChart.setOption(result)
  },
  methods: {}
}
</script>

<style lang="less" scoped>
</style>