一、安装echarts
npm install echarts --save二、在需要的页面引入
import * as echarts from "echarts"三、创建组件
1、模板1:vue2+javascript
<template>    <div>        <div class="echart_size" :id="id"></div>    </div></template><script>import * as echarts from 'echarts'export default {    props: {        // 接收的参数        id: {            type: String,            default: ''        },        datas: {            type: Array,            default: () => []        }    },    data() {        return {            // 变量        }    },    created() {        this.$nextTick(() => {            this.barBtn()        })    },    methods: {        barBtn() {            // 实例化对象            let myCharts = echarts.init(document.getElementById(this.id))            // 指定配置项和数据            let option = {                // 某图表            }            // 把配置项给实例对象            myCharts.setOption(option)            // 让图表跟随屏幕自动的去适应            window.addEventListener('resize', function () {                myCharts.resize()            })        }    }}</script><style lang="scss" scoped>.echart_size{    width: 500px;    height: 500px;}</style>2、模板2:vue3+javascript
vue3中,有的图表调用不到,初始化echarts时使用 shallowRef
const myCharts = shallowRef()<template>    <div class="echart_size" :id="props.id"></div></template><script setup>import { reactive, ref, nextTick, onMounted } from 'vue'import * as echarts from 'echarts'const props = defineProps({    id: {        type: String,        required: true    },    datas:{        type: Array,        required: true    }})let person=reactive({    // 初始变量})onMounted(()=>{    GetEchar()})const GetEchar = () => {    const myCharts = ref()    nextTick(() => {        myCharts.value = echarts.init(document.getElementById(props.id))        let option = {           // 某图表        };        myCharts.value.setOption(option)        // 让图表跟随屏幕自动的去适应        window.addEventListener('resize', function () {            myCharts.value.resize()        })    })}</script><style lang="scss" scoped>.echart_size {    width: 100%;    height: 100%;}</style>3、模板3:vue3+typescript
<template>    <div class="echart_size" :id="props.id"></div></template><script lang="ts" setup>import { reactive, ref, nextTick, onMounted } from 'vue'import * as echarts from 'echarts'let person: any = reactive({    // 初始变量})type Props = {    id: string}const props = withDefaults(defineProps<Props>(), {})onMounted(()=>{    GetEchar()})const GetEchar = () => {    const myChart = ref<HTMLElement>()    const myCharts = ref<any>()    nextTick(() => {        const chartDom = document.getElementById(props.id)!        myCharts.value = echarts.init(chartDom)        let option = {                   };        myCharts.value.setOption(option)        // 让图表跟随屏幕自动的去适应        window.addEventListener('resize', function () {            myCharts.value.resize()        })    })}</script><style lang="scss" scoped>.echart_size {    width: 500px;    height: 500px;}</style>四、页面调用
1、vue2
<template>  <div>    <EchartModule v-if="data&&data.length>0" :id="'myEchart'" :datas="data" />  </div></template><script>  import EchartModule from '@/components/echartModule'  export default {    components: {EchartModule},    data(){      return{        data: [            { value: 0, label: '测试1' },            { value: 1, label: '测试2' }        ]      }    }  }</script>2、vue3+js
<template>   <EchartModule v-if="data&&data.length>0" :id="'myEchart'" :datas="data" /></template><script setup>import { reactive } from 'vue'import EchartModule from '@/components/echartModule'let person=reactive({  data:[     { value: 0, label: '测试1' },     { value: 1, label: '测试2' }  ]})</script>3、vue3+ts
// vue3+ts<template>   <EchartModule v-if="data&&data.length>0" :id="'myEchart'" :datas="data" /></template><script lang="ts" setup>import { reactive } from 'vue'import EchartModule from '@/components/echartModule'let person:any=reactive({  data:[     { value: 0, label: '测试1' },     { value: 1, label: '测试2' }  ]})</script>五、Echarts 常用的相关事件
1、鼠标单击/左键事件
//vue2myCharts.on('click', function(e) {})// vue3myCharts.value.on('click', function(e) {})2、鼠标移入/进入事件
//vue2myCharts.on('mouseover', function(e) {})// vue3myCharts.value.on('mouseover', function(e) {})3、鼠标移出/离开事件
//vue2myCharts.on('mouseout', function(e) {})// vue3myCharts.value.on('mouseout', function(e) {})4、让图表跟随屏幕去自适应
window.addEventListener('resize', function () {   // vue2   myCharts.resize()   // vue3   myCharts.value.resize()})5、轮播动画效果
需要配置tooltip参数使用,显示tooltip提示框的轮播动画
// vue2myChart.currentIndex = -1;setInterval(function () {  var dataLen = option.series[0].data.length;  // 取消之前高亮的图形  myChart.dispatchAction({    type: 'downplay',    seriesIndex: 0,    dataIndex: myChart.currentIndex  });  myChart.currentIndex = (myChart.currentIndex + 1) % dataLen;  // 高亮当前图形  myChart.dispatchAction({    type: 'highlight',    seriesIndex: 0,    dataIndex: myChart.currentIndex  });  // 显示 tooltip  myChart.dispatchAction({    type: 'showTip',    seriesIndex: 0,    dataIndex: myChart.currentIndex  });}, 2000);6、dispatchAction 行为事件
具体用法参考 echarts 下的 action:https://echarts.apache.org/zh/api.html#action
(1)highlight:高亮指定的数据图形
myCharts.currentIndex = -1myCharts.dispatchAction({    type: 'highlight',    seriesIndex: 0,    dataIndex: myCharts.currentIndex});(2)downplay:取消高亮指定的数据图形
(3)select:选中指定的数据
(4)unselect:取消选中指定的数据
(5)toggleSelect:切换选中状态
(6)tooltip - showTip:显示提示框
(7)tooltip - hideTip:隐藏提示框
(8)dataZoom - dataZoom:数据区域缩放
(9)geo - geoSelect:选中指定的地图区域
(10)geo - geoUnSelect:取消选中指定的地图区域
(11)geo - geoToggleSelect:切换指定的地图区域选中状态
六、Echarts 常用的相关配置
1、tooltip 提示框
(1)tooltip的公共属性配置
tooltip: {  position:'right',  padding: [5,8],  textStyle:{      color: '#eee',      fontSize: 13  },  backgroundColor: "rgba(13,5,30,.5)",  extraCssText:'z-index:1', // 层级  axisPointer: {}}(2)trigger 类型为 item
tooltip: {  trigger: 'item',  formatter: function(param) {      let resultTooltip =          "<div style='border:1px solid rgba(255,255,255,.2);padding:5px;border-radius:3px;'>" +          "<div>" + param.name + "</div>" +          "<div style='padding-top:5px; font-size:10px;color:#999;'>" +          "<span style='display: inline-block; width: 10px; height:10px; border-radius: 50%;background-color: " + param.color + ";'></span>" +          "<span style=''> " + param.seriesName + ":</span>" +          "<span style='font-size:16px;color:" + param.color + "'>" + param.value + "</span></span>" +          "</div>";      return resultTooltip  }}(3)trigger 类型为 axis
tooltip: {  trigger: 'axis',  formatter: function(param) {    let resultTooltip =        "<div style='border:1px solid rgba(255,255,255,.2);padding:5px;border-radius:3px;'>" +        "<div>" + param[0].name + "</div>" +        "<div style='padding-top:5px; font-size:10px;color:#999;'>" +        "<span style='display: inline-block; width: 10px; height:10px; border-radius: 50%;background: " + param[0].color + ";'></span>" +        "<span style=''> " + param[0].seriesName + ":</span>" +        "<span style='font-size:16px;color:" + param[0].color + "'>" + param[0].value + "</span></span>" +        "</div>";    return resultTooltip  }}2、axisPointer 坐标指示器
(1)type 类型为 shadow
axisPointer: {    type: 'shadow',    label: { show: true, backgroundColor: 'transparent' },    shadowStyle: {        color: {            type: 'linear',            x: 0,            y: 0,            x2: 0,            y2: 1,            colorStops: [                { offset: 0, color: 'rgba(100, 101, 171, 0)' },                { offset: 0.5, color: 'rgba(100, 101, 171, 0.2)' },                { offset: 0.999999, color: 'rgba(100, 101, 171, 1)' },                { offset: 1, color: 'rgba(100, 101, 171, 1)' },            ],            global: false        }    }}(2)type 类型为 line
axisPointer: {    type: 'line',    label: { show: true, backgroundColor: 'transparent' },    lineStyle: {      color: {         type: 'linear',         x: 0,         y: 0,         x2: 0,         y2: 1,         colorStops: [            { offset: 0, color: 'rgba(100, 101, 171, 0)' },            { offset: 0.5, color: 'rgba(100, 101, 171, 0.2)' },            { offset: 0.999999, color: 'rgba(100, 101, 171, 1)' },            { offset: 1, color: 'rgba(100, 101, 171, 1)' }        ],        global: false      },      type: 'solid',      width: 10    }}3、渐变处理
(1)线性渐变区域 LinearGradient
 // 前四个分参数分别代表右,下,左,上,数值0-1color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [  {offset: 0,color: 'blue'  },  {offset: 1,color: 'red'  }])(2)径向渐变区域 RadialGradient
// 前三个分参数分别代表圆心(x,y),半径(数值0-1)color: new echarts.graphic.RadialGradient(0.5, 0.5, 0.8, [  {offset: 0,color: 'blue'  },  {offset: 1,color: 'red'  }])(3)线性渐变区域 colorStops-linear
// x,y,x2,y2数值同LinearGradient前四个参数分别代表右,下,左,上,数值0-1color: {  type: 'linear',  x: 0,  y: 0,  x2: 0,  y2: 1,  colorStops: [   { offset: 0, color: 'blue'   },   { offset: 1, color: 'red'   }  ],  global: false // 缺省为 false}(4)径向渐变区域 colorStops-radial
// x 0.5 y 0.5 代表圆心,r 代表半径color: {  type: 'radial',  x: 0.5,  y: 0.5,  r: 0.9,  colorStops: [{  offset: 0,  color: 'blue'    },    {  offset: 1,  color: 'red'    }  ],  global: false // 缺省为 false}(5)纹理填充 color-image
let url= "../../static/bg_icon.png"color: {  image: url, // 支持为 HTMLImageElement, HTMLCanvasElement,不支持路径字符串  repeat: 'repeat' // 是否平铺,可以是 'repeat-x', 'repeat-y', 'no-repeat'}4、label中文字通过rich自定义样式设置
label: {  show: true,  formatter: `\n{d|{d}} {unit|${props.unit}}`,  rich: {    d: {      fontSize: 26,      fontWeight: 600,      color: "#000"    },    unit: {      fontSize: 20,      fontWeight: 600,      color: "#3C3B3B"    }  },  color: "#000"}
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