如何使用Vue生成并显示缩略图？

1、在HTML中创建Vue组件的容器

<div id="thumbnail-app">
  <thumbnail :images="images"></thumbnail>
</div>

2、在JavaScript中编写Vue组件：

Vue.component('thumbnail', {
  props: ['images'],
  template: `
    <div>
      <div v-for="image in images" :key="image.id">
        <img :src="image.url" @click="showThumbnail(image)"/>
        <div class="thumbnail" v-if="selectedImage === image">
          <img :src="selectedImage.url" @click="closeThumbnail"/>
        </div>
      </div>
    </div>
  `,
  data() {
    return {
      selectedImage: null
    }
  },
  methods: {
    showThumbnail(image) {
      this.selectedImage = image;
    },
    closeThumbnail() {
      this.selectedImage = null;
    }
  }
});

new Vue({
  el: '#thumbnail-app',
  data() {
    return {
      images: [
        { id: 1, url: 'images/pics1.jpg' },
        { id: 2, url: 'images/pics2.jpg' },
        { id: 3, url: 'images/pics3.jpg' },
		{ id: 4, url: 'images/pics4.jpg' }
      ]
    }
  }
});

CSS样式：

.thumbnail {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80%;
  height: 80%;
  background: #fff;
  z-index: 9999;
  overflow: auto;
  padding: 20px;
}
 
.thumbnail img {
  display: block;
  margin: 0 auto;
  max-width: 100%;
  max-height: 100%;
}