关于vue.js:在Vue30项目中如何手动封装轮播图组件

因为我的项目的非凡状况, 所以须要手动封装一个轮播图, 大抵步骤:

• 筹备一个 Hz-carousel 组件根底布局并全局注册
• 筹备 home-banner 组件，应用 Hz-carousel 组件，再首页注册应用。
• 深度作用选择器笼罩 Hz-carousel 组件的默认款式

上面是具体步骤:

第一步:

当初 SRC 下的 components 文件夹中创立一个专门为我的项目封装组件的文件夹, 以便好治理.

例如:library/Hz-carousel.vue
轮播图根底构造代码

<template>
  <div class='Hz-carousel'>
    <ul class="carousel-body">
      <li class="carousel-item fade">
        <RouterLink to="/">
          <img src="http://yjy-xxxxxx-dev.oss-cn-beijing.aliyuncs.com/picture/2021-04-15/1ba86bcc-ae71-42a3-bc3e-37b662f7f07e.jpg" alt="">
        </RouterLink>
      </li>
    </ul>
    <a href="javascript:;" class="carousel-btn prev"><i class="iconfont icon-angle-left"></i></a>
    <a href="javascript:;" class="carousel-btn next"><i class="iconfont icon-angle-right"></i></a>
    <div class="carousel-indicator">
      <span v-for="i in 5" :key="i"></span>
    </div>
  </div>
</template>

<script>
export default {name: 'HzCarousel'}
</script>
<style scoped lang="less">
.Hz-carousel{
  width: 100%;
  height: 100%;
  min-width: 300px;
  min-height: 150px;
  position: relative;
  .carousel{
    &-body {
      width: 100%;
      height: 100%;
    }
    &-item {
      width: 100%;
      height: 100%;
      position: absolute;
      left: 0;
      top: 0;
      opacity: 0;
      transition: opacity 0.5s linear;
      &.fade {
        opacity: 1;
        z-index: 1;
      }
      img {
        width: 100%;
        height: 100%;
      }
    }
    &-indicator {
      position: absolute;
      left: 0;
      bottom: 20px;
      z-index: 2;
      width: 100%;
      text-align: center;
      span {
        display: inline-block;
        width: 12px;
        height: 12px;
        background: rgba(0,0,0,0.2);
        border-radius: 50%;
        cursor: pointer;
        ~ span {margin-left: 12px;}
        &.active {background:  #fff;}
      }
    }
    &-btn {
      width: 44px;
      height: 44px;
      background: rgba(0,0,0,.2);
      color: #fff;
      border-radius: 50%;
      position: absolute;
      top: 228px;
      z-index: 2;
      text-align: center;
      line-height: 44px;
      opacity: 0;
      transition: all 0.5s;
      &.prev{left: 20px;}
      &.next{right: 20px;}
    }
  }
  &:hover {
    .carousel-btn {opacity: 1;}
  }
}
</style>

** 全局注册轮播图
src/components/library/index.js**

首页广告组件根底构造 src/views/home/components/home-banner.vue

首页应用广告组件

<template>
  <div class="home-banner">
    <!-- l= 轮播图组件 -->
    <!-- autoplay 管制是否自动播放 -->
    <!-- duration 管制轮播的工夫的距离 -->
+    <XtxCarousel :sliders='sliders' :autoplay='true' :duration='2'/>
  </div>
</template>
<script>
+import {ref} from 'vue'
+import {findBanner} from '@/api/home'
export default {
  name: 'HomeBanner',
+  setup() {
    // 轮播图数据
+    const sliders = ref([])
    // 调用接口获取轮播图数据
+    findBanner().then(ret => {
+      sliders.value = ret.result
+    })
+    return {sliders}
  }
}
</script>
<style scoped lang="less">
.home-banner {
  width: 1240px;
  height: 500px;
  position: absolute;
  left: 0;
  top: 0;
  z-index: 98;
  .xtx-carousel {+    :deep(.carousel-btn.prev) {
+     left: 270px;
+    }
+    :deep(.carousel-indicator) {+     padding-left: 250px;}
  }
}
</style>

笼罩轮播图组件款式 src/views/home/components/home-banner.vue