子組件的代碼<template>     <div>       <div class="show">         <div class="picture" :style="'backgroundImage:url('+headerImage+')'" @click="addPic"></div>       </div>       <div>         <input ref="file" type="file" accept="image" @change="upload($event)"  style="display:none">       </div>     </div></template>  <script>   import Exif from 'exif-js'   export default {     data() {      return {        headerImage: '/static/images/add.jpg',        picValue: ''       }     },    methods: {       addPic() {        let file = this.$refs.file         file.click()   ←  這塊是點擊div 觸發點擊input file的點擊事件       },    }父組件<div class="upload">      <label for="">法人身份證</label>      <div class="frontimg">          <uploading @backImg="backImg"></uploading>          <p>{{text}}</p>      </div> </div>     methods:{         backImg(img) {                this.legalPersonImage = img;                this.text = '重新上傳'                 if (this.text == '重新上傳') {                    this.submit();                 }             },     }應該怎么寫 能在滿足一種條件下 清除點擊事件 求教