vue实现轮播图帧率播放

<template>
 <div id="imgPlay" ref="container" :style="[style]">
 <img :src="imgsrc" :style="[{height:style.height,width:style.width}]">
 <div id="but">
  <button @click="start()">开始</button>
  <button @click="stop()">停止</button>
 </div>
 </div>
</template>

<script>
export default {
 name: 'ZxImgPlay',
 data () {
 return {
  style:[
 width:"50px",
 height:"50px"
 ],
  interval: null, // 定时器id
  flag: true, // 定时器的开关
  setIntervalNumber: 0, // 当前展示的图片下标
  imgsrc: "", // 要展示的图片路径
  imgUrls: [], // 所有的图片路径
  frameRate: 0 // 帧率
 }
 },
 computed: {},
 watch: {},
 created () { },
 mounted () {
 this.zxInit()
 },
 beforeDestroy () { },

 methods: {
 zxInit () {
 // 这里的 this.DisplayParam 是公司内部的一套东西，混入的对象
 // this.DisplayParam.frameRate 是一个数组["目录名1","目录名2"]
 // this.DisplayParam.imgUrls 是死图当没有目录的时候就用死图
 // this.DisplayParam.frameRate 是传入的帧率
  this.frameRate = this.DisplayParam.frameRate && (1000 / this.DisplayParam.frameRate)
  this.imgUrls = this.DisplayParam.imgUrls
  this.DisplayParam.imageFileName != 0 ? this.readdir(this.DisplayParam.imageFileName) : this.showImages(true)
 },

 start () {
  if (this.flag) return
  this.showImages()
  this.flag = true
 },

 stop () {
  this.flag = false
  clearInterval(this.interval)
 },

 readImages (imageFileName, _A) {
  this.stop()
  let req = require.context("@/../static/images", true, /\.(?:bmp|jpg|gif|jpeg|png)$/).keys();
  let path = new RegExp(imageFileName[_A])
  req.forEach(item => {
  if (path.test(item)) {
   this.imgUrls.push({ img: "@/../static/images/" + imageFileName[_A] + item.substring(item.lastIndexOf('/')) })
  }
  })
  this.showImages()
 },
 readdir (imageFileName) {
  this.imgUrls = []
  for (let i = 0; i < imageFileName.length; i++) {
  this.readImages(imageFileName, i)
  }
 },

 showImages (_B) {
  if (_B) this.imgUrls = this.imgUrlsSort(this.imgUrls, 'sort')
  console.log(this.imgUrls)
  this.interval = setInterval(this.setIntervalFun, this.frameRate)
 },

 imgUrlsSort (ary, key) {
  return ary.sort((a, b) => {
  let x = a[key];
  let y = b[key];
  return ((x < y) ? -1 : (x > y) ? 1 : 0)
  })
 },

 setIntervalFun () {
  if (this.setIntervalNumber >= this.imgUrls.length) {
  this.setIntervalNumber = 0
  }
  this.imgsrc = this.imgUrls[this.setIntervalNumber++].img || ''
 }
 }
}
</script>