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前言:使用el-image组件预览大图,但你会发现文档中并没有写触发预览大图的方法,其实可以通过ref获取dom节点,再调用clickHandler方法进行放大预览调用
<template>
  <div>
    <el-button @click="tap">点击放大图片</el-button>
    <el-image style="width: 100px; height: 100px" ref="preview" :src="url" :preview-src-list="srcList"></el-image>
  </div>
</template>

<script>
export default {
  data() {
    return {
      url: 'https://fuss10.elemecdn.com/e/5d/4a731a90594a4af544c0c25941171jpeg.jpeg',
      srcList: [
        'https://fuss10.elemecdn.com/e/5d/4a731a90594a4af544c0c25941171jpeg.jpeg',
        'https://fuss10.elemecdn.com/8/27/f01c15bb73e1ef3793e64e6b7bbccjpeg.jpeg',
        'https://fuss10.elemecdn.com/1/8e/aeffeb4de74e2fde4bd74fc7b4486jpeg.jpeg',
      ],
    }
  },
  methods: {
    // 点击调用放大图片的方法,进行预览
    tap() {
      this.$refs.preview.clickHandler()
    },
  },
}
</script>