vue輪播圖外掛

自己寫了一個vue輪播圖外掛，自己感覺還可以，但不怎麼熟悉vue希望大神們能指出錯誤或不好的地方。

效果：

<template>
  <div class="vuecarousel">
    <div class="contain" 
         @mouseenter="stop" 
         @mouseleave="start"
         :style="{width: imgWidth + 'px', height: imgHeight + 'px'}"
         //顯示區域（圖片）大小
    >
      <ul class="ul">
        <li class="items" 
            v-for="(img, index) in imgs" :key="index"  
            v-show="index == showIndex"
        >
          <img :src="img.src" alt="輪播圖">
        </li>
      </ul>
      <ul class="dots" 
          :style="{width: imgs.length * (dotWidth + 10) + 'px',  height: dotWidth + 'px'}"
          //顯示小圓點容器大小
      >
        <li v-for="(img, index) in imgs" :key="index"  
            :class="index == showIndex ? 'active' : ''" 
            @click="showIndex = index"
            :style="{width: dotWidth + 'px', height: dotWidth + 'px'}"
            //顯示小圓點大小
        >
        </li>
      </ul>
      <div class="control" v-show="show">
        <span class="left"  @click="previous"><</span>
        <span class="right" @click="next">></span>
      </div>
    </div>
  </div>
</template>

<script>
export default {
  name: 'VueCarousel',
  created () {
    this.timer = setInterval(() => {
      this.next();
    }, this.delay)
  },
  beforeDestroy () {
   clearInterval(this.timer); 
  },
  props: {
    imgs:{
      type: Array,
      required: true
    },
    delay:{
      type: Number,
      default: function(){
        return 2000;
      }
    },
    imgWidth:{
      default: function(){
        return 400;
      }
    },
    imgHeight:{
      default: function(){
        return 302;
      }
    },
    dotWidth:{
      default: function(){
        return 20;
      }
    }
  },
  data(){
    return {
      showIndex: 0, //顯示第幾個圖片
      timer: null,  // 定時器
      show: false   // 前後按鈕顯示
    }
  },
  methods: {
    previous(){
      if(this.showIndex <= 0){
        this.showIndex = this.imgs.length - 1;
      }else{
        this.showIndex --;
      }
    },
    next () {
      if(this.showIndex >= this.imgs.length - 1){
        this.showIndex = 0;
      }else{
        this.showIndex ++;
      }
    },
    start(){
      this.show = false;
      clearInterval(this.timer);
      this.timer = setInterval(() => {
        this.next();
      }, this.delay)
    },
    stop () {
      this.show = true;
      clearInterval(this.timer);
    }
  }
}
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped lang="scss" scoped>
.contain {
   position: relative;
   top: 50%;
   left: 50%;
   transition: all .8s;
   transform: translateX(-50%);
   color: #fff;
   overflow: hidden;
   cursor: pointer;
  .ul {
    height: 100%;
    list-style: none;
    .items {
      position: absolute;
      top: 0px;
      width: 100%;
      height: 100%;
      img {
        width: 100%;
        height: 100%;
      }
    }
  }
  .dots {
    position: absolute;
    left: 50%;
    bottom: 30px;
    height: 10px;
    transform: translateX(-50%);
    li {
      float: left;
      width: 10px;
      height: 10px;
      margin: 0px 5px;
      border-radius: 50%;
      transition: all .3s;
      background-color: antiquewhite;
      list-style: none;
    }
    .active {
      background-color: blue;
    }
  }
  .control {
    .left {
      position: absolute;
      top: 50%;
      left: 10px;
      padding: 5px;
      transform: translateY(-50%);
      font-size: 20px;
      cursor: pointer;
      &:hover {
        background-color: rgba($color: #000000, $alpha: 0.3);
      }
    }
    .right {
      position: absolute;
      top: 50%;
      right: 10px;
      padding: 5px;
      transform: translateY(-50%);
      font-size: 20px;
      cursor: pointer;
      &:hover {
        background-color: rgba($color: #000000, $alpha: 0.3);
      }
    }
  }
}
</style>
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呼叫：

<template>
  <div id="app">
    <VueCarousel 
        :imgs="imgs"  //圖片
        :delay="2000"  //延時
        :imgWidth="400"  //圖片寬度
        :imgHeight="302"  //圖片高度
        :dotWidth="20" //下方小圓點大小
    />
  </div>
</template>

<script>
import VueCarousel from './components/VueCarousel.vue'

export default {
  name: 'app',
  components: {
    VueCarousel
  },
  data () {
    return {
      imgs:[
            {src: require('@/static/images/1.png')},
            {src: require('@/static/images/2.png')},
            {src: require('@/static/images/3.png')},
            {src: require('@/static/images/4.png')},
            {src: require('@/static/images/5.png')}
           ]
    }
  }
}
</script>
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