首先我们先要把图形打出来
<style> div{ width: 10px; height: 10px; background: red; position: absolute; border-radius: 50%; } </style>
然后写出滑动鼠标事件向那个方向移动
<script> document.onmousemove = function () { var div = document.createElement('div'); var x = event.clientX; var y = event.clientY; div.style.left = x + "px"; div.style.top = y + "px"; document.body.appendChild(div); } </script>