<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>Title</title> <link rel="stylesheet" type="text/css" href="系统CSS初始化.css"> <style> #div1{ width: 50px; height: 50px; background: rebeccapurple; float: left; margin: 20px; } #div2{ width: 200px; height: 200px; background: #555555; float: left; margin: 20px; display: none; } </style> <script> window.onload=function () { var oDiv1=document.getElementById("div1"); var oDiv2=document.getElementById("div2"); var timer=null; oDiv1.onmousemove=function () { clearTimeout(timer); oDiv2.style.display="block"; } oDiv1.onmouseleave=function () { timer= setTimeout(function () { oDiv2.style.display="none"; },500) } oDiv2.onmousemove=function () { clearTimeout(timer); } oDiv2.onmouseleave=function () { timer=setTimeout(function () { oDiv2.style.display="none"; },500) } } </script> </head> <body> <div id="div1";></div> <div id="div2"></div> </body> </html>
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