js如何将dome结构转为图片

import html2canvas from "html2canvas";
createImg() {
      let content = this.$refs.content;
      let scrollHeight = content.scrollHeight;
      let scrollWidth = content.scrollWidth;
      html2canvas(content, {
        scale: window.devicePixelRatio * 2,
        useCORS: true, //开启跨域配置，但和allowTaint不能共存
        width: scrollWidth,
        height: scrollHeight,
        windowWidth: scrollWidth,
        windowHeight: scrollHeight,
        x: 0,
        y: window.pageYOffset,
      }).then((canvas) => {
        let dataURL = canvas.toDataURL("image/png");
        // let link = document.createElement("a");
        // link.href = dataURL;
        console.log(dataURL);
        callNativeMethod("takeScreenShotImg", dataURL);
        // let filename = `${new Date().getTime()}.jpg`; //文件名称
        // link.setAttribute("download", filename);
        // link.style.display = "none"; //a标签隐藏
        // document.body.appendChild(link);
        // link.click();
      });
    },