src/DebugDemo/html2canvas/index.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <script src="html2canvas.js"></script>
</head>
<body>
  <div style="display:flex;">
    <div>1</div>
    <div style="margin-left:50px;">2</div>
  </div>
  <div id="test" style="background-image: url('bg.jpg');height:707px;width:500px;color: #fff;">
    <div style="padding-top:250px;padding-left:100px;">
        <h1>邀请函</h1>
        <div style="width: 200px;
        word-break: break-word;">
          你好，邀请你xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
        </div>
        <p>
          --- guoqzuo
        </p>
    </div>
  </div>
  <script>
    let testElement = document.getElementById('test')
    html2canvas(testElement).then(function(canvas) {
      console.log(canvas)
      let img = new Image()
      img.src = canvas.toDataURL()
      img.onload = function() {
        document.body.appendChild(img);
      }
    });
  </script>
</body>
</html>