<!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title></title> <style> html,body{ width: 100%; height: 100%; } #box{ height: 100px; width: 100px; background:deeppink; position: absolute; } </style> </head> <body> <div id="box"> <p id="p1"></p> <p id="p2"></p> </div> </body> </html> <script> var box = document.getElementById("box"); var p1=document.getElementById("p1"); var p2=document.getElementById("p2"); document.onmousemove = function(evt){ var e = evt || event; box.style.left = e.pageX + "px"; box.style.top = e.pageY + "px"; p1.innerHTML=box.style.left; p2.innerHTML=box.style.top; document.body.onmousemove=function(evt){ var d=document.createElement("div"); var e = evt || event; d.style.width="5px"; d.style.height="5px"; d.style.background="red"; d.style.borderRadius="50%"; d.style.position="absolute"; document.body.appendChild(d); d.style.left = e.pageX + "px"; d.style.top = e.pageY + "px"; } } </script>
标签：box,style,鼠标,点和线,px,var,document,evt,css From： https://www.cnblogs.com/yadi001/p/17351784.html