Vue实现base64编码图片间的切换功能

<div class="row-panel">
  <div class="item-panel" v-for="item in this.emojiList" :key="item.info">
    <img :src="require(`../assets/img/emoji/${item.src}`)" :alt="item.info" @mouseover="emojiConversion($event,'over',item.src,item.hover)" @mouseleave="emojiConversion($event,'leave',item.src,item.hover)">
  </div>
</div>

import emoji from '../assets/json/emoji';

data() {
      return {
        emojiList:emoji,
        toolbarList:toolbar
      }
    }

 // 表情框鼠标悬浮显示动态表情
  emojiConversion:function (event,status,path,hoverPath) {
    if(status==="over"){
      event.target.src = require(`../assets/img/emoji/${hoverPath}`);
    }else{
      event.target.src = require(`../assets/img/emoji/${path}`);
    }
  }

emoji.json
[
 {
  "name": "pout",
  "src": "1fix@2x.png",
  "info": "撇嘴",
  "hover": "1@2x.gif"
 },
 {
  "name": "porn",
  "src": "2fix@2x.png",
  "info": "色",
  "hover": "2@2x.gif"
 },
 {
  "name": "smile",
  "src": "14fix@2x.png",
  "info": "微笑",
  "hover": "14@2x.gif"
 },
 {
  "name": "smile",
  "src": "178fix@2x.png",
  "info": "滑稽",
  "hover": "178@2x.gif"
 }
]

// 这样直接在data中写文件路径没问题，可以正常渲染
emojiSrc:{
    "funny":require("../assets/img/emoji/178fix@2x.png"),
    "funnyNormal":require("../assets/img/emoji/178fix@2x.png"),
    "funnyHover":require("../assets/img/emoji/178@2x.gif"),
    "smile":require("../assets/img/emoji/14fix@2x.png"),
    "smileNormal":require("../assets/img/emoji/14fix@2x.png"),
    "smileHover":require("../assets/img/emoji/14@2x.gif"),
    "pout":require("../assets/img/emoji/1fix@2x.png"),
    "poutNormal":require("../assets/img/emoji/1fix@2x.png"),
    "poutHover":require("../assets/img/emoji/1@2x.gif"),
    "porn":require("../assets/img/emoji/2fix@2x.png"),
    "pornNormal":require("../assets/img/emoji/2fix@2x.png"),
    "pornHover":require("../assets/img/emoji/2@2x.gif"),
  }

require(`../assets/img/emoji/${hoverPath}`);