基于Vue+echarts编写一个折线图

npm install echarts --save

import echarts from 'echarts'

<template>
  <div id="chart" style="height: 300px;"></div>
</template>

export default {
  mounted () {
    // 基于准备好的dom，初始化echarts实例
    const myChart = echarts.init(document.getElementById('chart'))
     // 指定图表的配置项和数据
    const option = {
      title: {
        text: '折线图示例'
      },
      tooltip: {},
      legend: {
        data:['销量']
      },
      xAxis: {
        data: ["周一","周二","周三","周四","周五","周六","周日"]
      },
      yAxis: {},
      series: [{
        name: '销量',
        type: 'line',
        data: [5, 20, 36, 10, 10, 20, 8]
      }]
    }
     // 使用刚指定的配置项和数据显示图表
    myChart.setOption(option)
  }
}

<template>
  <div id="chart" style="height: 300px;"></div>
</template>
<script>
import echarts from 'echarts'
export default {
  props: {
    xAxisData: {
      type: Array,
      default: () => []
    }
  },
  data() {
    return {
      chart: null
    }
  },
  mounted() {
    this.initChart()
  },
  updated() {
    this.setOption()
  },
  methods: {
    initChart() {
      this.chart = echarts.init(this.$el)
      this.setOption()
    },
    setOption() {
      const option = {
        xAxis: {
          type: 'category',
          data: this.xAxisData
        },
        ...
      }
      this.chart.setOption(option)
    }
  }
}
</script>