Vue3 使用 echarts

echarts 是百度基于 JavaScript 实现的一个开源可视化图表库，主要特点就是可视化类型丰富、动画炫酷、使用简单。
这个教程就简单演示如何在 Vue 3 项目中使用 echarts。

1、导入 echarts

import * as echarts from "echarts";

2、初始化 echarts 并设置图表实例的配置项以及数据

const state = reactive({
    
    
  option: {
    
    
    legend: {
    
    
      x: "center",
      y: "bottom",
    },
    tooltip: {
    
    
      trigger: "item", // axis   item   none三个值
      formatter: "{b}:{d}%",
    },
    series: [
      {
    
    
        type: "pie",
        radius: "50%",
        label: {
    
    
          show: true,
          // formatter: "{b} : {c} ({d}%)", //带当前图例名 + 百分比
          // formatter: "{d}%", //只要百分比
          formatter: "{b}:{d}%",
        },
        labelLine: {
    
     show: true },
        data: [
          {
    
    
            value: 1956,
            name: "非星级",
          },
          {
    
    
            value: 1866,
            name: "一星级",
          },
          {
    
    
            value: 1725,
            name: "二星级",
          },
          {
    
    
            value: 1535,
            name: "三星级",
          },
          {
    
    
            value: 1505,
            name: "四星级",
          },
          {
    
    
            value: 1414,
            name: "五星级",
          },
        ],
      },
    ],
  },
});
const initeCharts = () => {
    
    
  let myChart = echarts.init(document.getElementById("myChart"));
  // 绘制图表
  myChart.setOption(state.option);
};
onMounted(() => {
    
    
  initeCharts();
});

3、设置接收容器

<template>
  <div>
    <div id="myChart" style="width: 500px; height: 500px"></div>
  </div>
</template>

完整代码

<template>
  <div>
    <div id="myChart" style="width: 500px; height: 500px"></div>
  </div>
</template>

<script setup>
import {
    
     reactive, ref, onMounted } from "vue";
import * as echarts from "echarts";
const state = reactive({
    
    
  option: {
    
    
    legend: {
    
    
      x: "center",
      y: "bottom",
    },
    tooltip: {
    
    
      trigger: "item", // axis   item   none三个值
      formatter: "{b}:{d}%",
    },
    series: [
      {
    
    
        type: "pie",
        radius: "50%",
        label: {
    
    
          show: true,
          // formatter: "{b} : {c} ({d}%)", //带当前图例名 + 百分比
          // formatter: "{d}%", //只要百分比
          formatter: "{b}:{d}%",
        },
        labelLine: {
    
     show: true },
        data: [
          {
    
    
            value: 1956,
            name: "非星级",
          },
          {
    
    
            value: 1866,
            name: "一星级",
          },
          {
    
    
            value: 1725,
            name: "二星级",
          },
          {
    
    
            value: 1535,
            name: "三星级",
          },
          {
    
    
            value: 1505,
            name: "四星级",
          },
          {
    
    
            value: 1414,
            name: "五星级",
          },
        ],
      },
    ],
  },
});
const initeCharts = () => {
    
    
  let myChart = echarts.init(document.getElementById("myChart"));
  // 绘制图表
  myChart.setOption(state.option);
};
onMounted(() => {
    
    
  initeCharts();
});
</script>

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