实例参考： http://chartsdev.com/forum-2-1.html

格式代码

<template>
  <div :class="className" :style="{height:height,width:width}" />
</template>

<script>
import * as echarts from 'echarts'
// require('echarts/theme/macarons') // echarts theme
import resize from './mixins/resize'

export default {
  mixins: [resize],
  props: {
    className: {
      type: String,
      default: 'chart'
    },
    width: {
      type: String,
      default: '100%'
    },
    height: {
      type: String,
      default: '350px'
    },
    autoResize: {
      type: Boolean,
      default: true
    },
    chartData: {
      type: Object,
      required: true
    }
  },
  data() {
    return {
      chart: null
    }
  },
  watch: {
    chartData: {
      handler(val) {
        // this.setOptions(val)
        this.initChart(val)
      },
      deep: true,
    }
  },
  created() {
    this.$nextTick(() => {
      // this.initChart()
      })
  },
  beforeDestroy() {
    if (!this.chart) {
      return
    }
    this.chart.dispose()
    this.chart = null
  },
  methods: {
    initChart() {
      this.chart = echarts.init(this.$el)
      this.setOptions(this.chartData)
    },
    setOptions({ expectedData, actualData, xAxisData } = {}) {
      this.chart.setOption({
        xAxis: {
          data: xAxisData,
          boundaryGap: false,
          axisTick: {
            show: false
          },
          axisLine: {
            lineStyle: {
              color: ["#787878"],
            },
          },
        },
        grid: {
          left: 10,
          right: '3%',
          bottom: 20,
          top: 30,
          containLabel: true
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross'
          },
          padding: [5, 10]
        },
        yAxis: {
          axisLine: {
            lineStyle: {
              color: ["#787878"],
            },
          },
          axisTick: {
            show: false
          }
        },
        legend: {
          data: ['legend1', 'legend2']
        },
        series: [{
          name: 'legend1', 
          itemStyle: {
            normal: {
              color: '#66c337', 
              lineStyle: {
                color: '#66c337', 
                width: 2
              }
            }
          },
          symbol: "circle", //设定为实心点
          symbolSize: 8, //设定实心点的大小
          // smooth: true,
          type: 'line',
          data: expectedData,
          animationDuration: 2800,
          animationEasing: 'cubicInOut'
        },
        {
          name: 'legend2',
          // smooth: true,
          type: 'line',
          itemStyle: {
            normal: {
              color: '#409eff',
              lineStyle: {
                color: '#409eff',
                width: 2
              },
              areaStyle: {
                color: '#f3f8ff'
              }
            }
          },
          symbol: "circle", //设定为实心点
          symbolSize: 8, //设定实心点的大小
          data: actualData,
          animationDuration: 2800,
          animationEasing: 'quadraticOut'
        }]
      })
    }
  }
}
</script>

混入 作用：随着屏幕缩放

import { debounce } from '@/utils'

export default {
  data() {
    return {
      $_sidebarElm: null,
      $_resizeHandler: null
    }
  },
  mounted() {
    this.initListener()
  },
  activated() {
    if (!this.$_resizeHandler) {
      // avoid duplication init
      this.initListener()
    }

    // when keep-alive chart activated, auto resize
    this.resize()
  },
  beforeDestroy() {
    this.destroyListener()
  },
  deactivated() {
    this.destroyListener()
  },
  methods: {
    // use $_ for mixins properties
    // https://vuejs.org/v2/style-guide/index.html#Private-property-names-essential
    $_sidebarResizeHandler(e) {
      if (e.propertyName === 'width') {
        this.$_resizeHandler()
      }
    },
    initListener() {
      this.$_resizeHandler = debounce(() => {
        this.resize()
      }, 100)
      window.addEventListener('resize', this.$_resizeHandler)

      this.$_sidebarElm = document.getElementsByClassName('sidebar-container')[0]
      this.$_sidebarElm && this.$_sidebarElm.addEventListener('transitionend', this.$_sidebarResizeHandler)
    },
    destroyListener() {
      window.removeEventListener('resize', this.$_resizeHandler)
      this.$_resizeHandler = null

      this.$_sidebarElm && this.$_sidebarElm.removeEventListener('transitionend', this.$_sidebarResizeHandler)
    },
    resize() {
      const { chart } = this
      chart && chart.resize()
    }
  }
}

/**
 * @param {Function} func
 * @param {number} wait
 * @param {boolean} immediate
 * @return {*}
 */
export function debounce(func, wait, immediate) {
  let timeout, args, context, timestamp, result

  const later = function() {
    // 据上一次触发时间间隔
    const last = +new Date() - timestamp

    // 上次被包装函数被调用时间间隔 last 小于设定时间间隔 wait
    if (last < wait && last > 0) {
      timeout = setTimeout(later, wait - last)
    } else {
      timeout = null
      // 如果设定为immediate===true，因为开始边界已经调用过了此处无需调用
      if (!immediate) {
        result = func.apply(context, args)
        if (!timeout) context = args = null
      }
    }
  }

  return function(...args) {
    context = this
    timestamp = +new Date()
    const callNow = immediate && !timeout
    // 如果延时不存在，重新设定延时
    if (!timeout) timeout = setTimeout(later, wait)
    if (callNow) {
      result = func.apply(context, args)
      context = args = null
    }

    return result
  }
}