<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
  
</head>
<body>
  <div id="e" style="width: 100px;height: 1000px;background-color: red;position: relative;left: 0;">

  </div>
  <button id="but">按钮</button>
  <script>
   
    var progress = 0;
    let e = document.getElementById('e')
    let but = document.getElementById('but')
    but.onclick = function () {
      //回调函数
      let top = document.documentElement.scrollTop 
      let step = top / 10
    function render() {
      if(progress === 10) {
        progress = 0
      }
     progress += 1; //修改图像的位置
     if (progress < 10) {
     //在动画没有结束前，递归渲染
     console.log(progress,new Date().toLocaleString())
     e.style.left  =  progress + 'px'
     e.style.width = progress *10 +100+ 'px'
     document.documentElement.scrollTop = document.documentElement.scrollTop - step
     window.requestAnimationFrame(render);
     }
    }
    //第一帧渲染
    let id =  window.requestAnimationFrame(render)
    //cancelAnimationFrame(id) 销毁这个动画函数
    }
    
  </script>
</body>
</html>