Vue implements the frame rate playback of the carousel

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

<script>
export default {
 name: 'ZxImgPlay',
 data () {
 return {
  style:[
 width:"50px",
 height:"50px"
 ],
  interval: null, // timer id
  flag: true, // Timer switch setIntervalNumber: 0, // Current displayed image subscript imgsrc: "", // Image path to be displayed imgUrls: [], // All image paths frameRate: 0 // Frame rate }
 },
 computed: {},
 watch: {},
 created () { },
 mounted () {
 this.zxInit()
 },
 beforeDestroy () { },

 methods: {
 zxInit() {
 //This.DisplayParam is a set of things within the company, and the mixed object //this.DisplayParam.frameRate is an array ["Directory Name 1", "Directory Name 2"]
 // this.DisplayParam.imgUrls is a dead image. When there is no directory, the dead image is used. // this.DisplayParam.frameRate is the incoming frame rate 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>