npm install html2canvas -S

import html2canvas from 'html2canvas';

//template

<div class="print " @click="generatorImage" >

          <span>打印</span>

</div>

<div class="content" ref="addImage">

      <div ref="capture" >

           需要保存的html页面

      </div>

</div>        

//js

methods: {

    //点击生成图片

    generatorImage() {

      html2canvas(this.$refs.capture).then(canvas => {

        // this.$refs.addImage.append(canvas);//在下面添加canvas节点

        let link = document.createElement("a");

        link.href = canvas.toDataURL();//下载链接

        link.setAttribute("download","体检表.png");

        link.style.display = "none";//a标签隐藏

        document.body.appendChild(link);

        link.click();

      });

    },

}