因为我的项目须要页面截图性能,我就找到了html2canvas插件

<div ref="shareDom">    <div class="exclude"><div><div><button @click="goShare()">分享<button>
 jsasync goShare(){    let dom = this.$refs["shareDom"];    const res = await html2canvas(dom, {         width: parseInt(window.getComputedStyle(dom).width),        height: parseInt(window.getComputedStyle(dom).height),        allowTaint: true,        taintTest: false,         scale: window.devicePixelRatio,  设施像素比        ignoreElements:(element)=>{  可从渲染中删除匹配的元素            if(element.className === 'exclude') return true;        },    })    this.imgUrl = res.toDataURL()}

最初就是一张base64图片。