vue中使用echarts 简单demo

1. 安装echarts
   （因为版本原因，有些时候会报错，因此查了这个4版本的不报错）

npm install echarts@4.9.0

2. main.js中引入echarts

import echarts from "echarts";

3. 子组件
   hello.vue

<template>
  <!-- <div class="hello">
    <div id="main" style="width: 600px; height: 400px"></div>
    ds
  </div> -->
  <!-- <div id="chart" style="width: 100%; height: 376px"></div> -->
  <div>
    <h2>vue中插入Echarts示例</h2>
    <div id="chart_example"></div>
  </div>
</template>


<script>import echarts from "echarts";
export default {
  data() {
    return {};
  },
  mounted() {
    let this_ = this;
    let myChart = echarts.init(document.getElementById("chart_example"));
    let option = {
      color: ["#f44"],
      tooltip: {
        trigger: "axis",
        axisPointer: {
          type: "shadow",
        },
      },
      xAxis: [
        {
          type: "category",
          data: [
            "1月",
            "2月",
            "3月",
            "4月",
            "5月",
            "6月",
            "7月",
            "8月",
            "9月",
            "10月",
            "11月",
            "12月",
          ],
          axisTick: {
            alignWithLabel: true,
          },
        },
      ],
      yAxis: [
        {
          type: "value",
        },
      ],
      series: [
        {
          name: "每月花费",
          type: "bar",
          barWidth: "60%",
          data: [995, 666, 444, 858, 654, 236, 645, 546, 846, 225, 547, 356],
        },
      ],
    };
    myChart.setOption(option);

    //建议加上以下这一行代码，不加的效果图如下（当浏览器窗口缩小的时候）。超过了div的界限（红色边框）
    window.addEventListener("resize", function () {
      myChart.resize();
    });
  },
  methods: {},
  watch: {},
  created() {},
};</script>


<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped>h2 {
  text-align: center;
  padding: 30px;
  font-size: 18px;
}
#chart_example {
  width: 50%;
  height: 500px;
  border: 1px solid red;
  margin: 0 auto;
}</style>

4. 在App.vue中引入子组件hello.vue