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<>最终效果
<>实现过程
<>引入Echarts依赖
npm install echarts --save
<>模版文件代码
<template> <div class="home"> <h1>Echarts 动态数据</h1> <button @click="start">开始执行
</button> <button @click="stop">停止执行</button> <div style="width:100%; height:
500px;" ref="main"></div> </div> </template> <script> import * as echarts from
'echarts' export default { name: 'Home', data(){ return{ myChart: null, dataList
: [5,20,36,10,10,20], timer: null, option: null, } }, methods:{ showEcharts(){
this.myChart = echarts.init(this.$refs.main); this.option = { title: { text:
'Echarts 入门示例' }, tooltip: {}, xAxis: { data: ['衬衫','羊毛衫','雪纺衫','裤子','高跟鞋','袜子']
}, yAxis: {}, series: [ { name: '销量', type: 'line', data: this.dataList, smooth:
true } ] } this.myChart.setOption(this.option); }, start(){ this.timer =
setInterval(()=>{ // this.myChart.dispose(); // this.showEcharts(); this.
dataList[parseInt(5*Math.random())] = parseInt(50*Math.random()); this.myChart.
setOption(this.option); },200) }, stop() { clearInterval(this.timer); } },
mounted(){ this.showEcharts(); } } </script>
上面的Echarts是使用的官网最简单的入门示例，只不过这里实现方式上有所区别。要实现动态数据最主要的方法是让Echarts的option重新设置。这里在初始化完成Echarts后，将option最为data中的值，这样是为了方便再其他地方重新设置option。代码中在start方法中就是对Echarts的option重新赋值后进行重设。
