<template>
 <div id="slider">
  <div class="window" @mouseover="stop" @mouseleave="play">
   <ul class="container" :style="containerStyle">
    <li>
     <img :style="{width:imgWidth+'px'}" :src="/UploadFiles/2021-04-02/sliders[sliders.length - 1].img">

　　CSS部分：


*{
    box-sizing: border-box;
    margin:0;
    padding:0;
   }
   ol,ul{
    list-style: none;
   }
   #slider{
    text-align: center;
   }
   .window{
    position:relative;
    width:600px;
    height:400px;
    margin:0 auto;
    overflow:hidden;
   }
   .container{
    display:flex;
    position:absolute;
   }
   .left, .right{
    position:absolute;
    top:50%;
    transform:translateY(-50%);
    width:50px;
    height:50px;
    background-color:rgba(0,0,0,.3);
    border-radius:50%;
    cursor:pointer;
   }
   .left{
    left:3%;
    padding-left:12px;
    padding-top:10px;
   }
   .right{
    right:3%;
    padding-right:12px;
    padding-top:10px;
   }
   img{
    user-select: none;
   }
   .dots{
     position:absolute;
     bottom:10px;
     left:50%;
     transform:translateX(-50%);
    }
   .dots li{
    display:inline-block;
    width:15px;
    height:15px;
    margin:0 3px;
    border:1px solid white;
    border-radius:50%;
    background-color:#333;
    cursor:pointer;
   }
   .dots .dotted{
    background-color:orange;
   }


　　JavaScript部分：


script>
export default {
 name: 'slider',
 props: {
  initialSpeed: {
   type: Number,
   default: 30
  },
  initialInterval: {
   type: Number,
   default: 3
  }
 },
 data () {
  return {
   sliders:[
    {
     img:'http://img.hb.aicdn.com/adbde61e4343dedd21e97ea7f22666825a8db7d077ffe-qn8Pjn_fw658'
    },
    {
     img:'http://img.hb.aicdn.com/adeed7d28df6e776c2fa6032579c697381d1a82b7fe00-fwRqgn_fw658'
    },
    {
     img:'http://img.hb.aicdn.com/ab7f48509b3c0353017d9a85ef1d12400c9b2724540d4-p3zouo_fw658'
    },
    {
     img:'http://img.hb.aicdn.com/60f788fc2a846192f224b9e6d4904b30e54926211d3d67-ACFJ9G_fw658'
    },
    {
     img:'http://img.hb.aicdn.com/22ded455284aab361b8d2056e82f74a891a019704296a-PSraEB_fw658'
    },
   ],
   imgWidth:600,
   currentIndex:1,
   distance:-600,
   transitionEnd: true,
   speed: this.initialSpeed
  }
 },
 computed:{
  containerStyle() {
   return {
    transform:`translate3d(${this.distance}px, 0, 0)`
   }
  },
  interval() {
   return this.initialInterval * 1000
  }
 },
 mounted() {
  this.init()
 },
 methods:{
  init() {
   this.play()
   window.onblur = function() { this.stop() }.bind(this)
   window.onfocus = function() { this.play() }.bind(this)
  },
  move(offset, direction, speed) {
   console.log(speed)
   if (!this.transitionEnd) return
   this.transitionEnd = false
   direction === -1 ? this.currentIndex += offset/600 : this.currentIndex -= offset/600
   if (this.currentIndex > 5) this.currentIndex = 1
   if (this.currentIndex < 1) this.currentIndex = 5

   const destination = this.distance + offset * direction
   this.animate(destination, direction, speed)
  },
  animate(des, direc, speed) {
   if (this.temp) {
    window.clearInterval(this.temp);
    this.temp = null ;
   }
   this.temp = window.setInterval(() => {
    if ((direc === -1 && des < this.distance) || (direc === 1 && des > this.distance)) {
     this.distance += speed * direc
    } else {
     this.transitionEnd = true
     window.clearInterval(this.temp)
     this.distance = des
     if (des < -3000) this.distance = -600
     if (des > -600) this.distance = -3000
    }
   }, 20)
  },
  jump(index) {
   const direction = index - this.currentIndex >= 0 ? -1 : 1;
   const offset = Math.abs(index - this.currentIndex) * 600;
   const jumpSpeed = Math.abs(index - this.currentIndex) === 0 ? this.speed : Math.abs(index - this.currentIndex) * this.speed ;
   this.move(offset, direction, jumpSpeed)
  },
  play() {
   if (this.timer) {
    window.clearInterval(this.timer)
    this.timer = null
   }
   this.timer = window.setInterval(() => {
    this.move(600, -1, this.speed)
   }, this.interval)
  },
  stop() {
   window.clearInterval(this.timer)
   this.timer = null
  }
 }
}
</script>


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