Vue和Canvas：如何实现实时数据可视化

<template>  <div>    <canvas ref="canvas"></canvas>  </div></template><script>export default {  mounted() {    this.canvas = this.$refs.canvas;    this.context = this.canvas.getContext('2d');        // 初始化数据    this.dataList = [];        // 开始实时更新数据    this.startDataUpdate();  },  methods: {    startDataUpdate() {      // 模拟一个定时器，每隔1秒更新一次数据      setInterval(() => {        this.updateData();        this.renderData();      }, 1000);    },    updateData() {      // 模拟生成新的数据      const newData = Math.random() * 100;            // 将数据追加到列表中      this.dataList.push(newData);            // 如果数据超过画布的宽度，则清空列表      if (this.dataList.length > this.canvas.width / 10) {        this.dataList = [];      }    },    renderData() {      // 清空画布      this.context.clearRect(0, 0, this.canvas.width, this.canvas.height);            // 绘制数据      this.context.strokeStyle = 'blue';      this.context.lineWidth = 2;      this.context.beginPath();      for (let i = 0; i < this.dataList.length; i++) {        const x = i * 10;        const y = this.canvas.height - this.dataList[i];                if (i === 0) {          this.context.moveTo(x, y);        } else {          this.context.lineTo(x, y);        }      }      this.context.stroke();    }  }}</script>

<template>  <div>    <h2>实时数据可视化</h2>    <CanvasVisualization></CanvasVisualization>  </div></template><script>import CanvasVisualization from './CanvasVisualization.vue';export default {  components: {    CanvasVisualization  }}</script>