我这样做符合要求吗
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title></title>
<script type="text/javascript">
function openWindow(){
var url="http://www.imooc.com/"
var open = prompt("是否确认新增窗口打开新的网站？",url);
if(open==url){
window.open("http://www.imooc.com/",'_blank','width=400,height=500,menubar=yes,topbar=yes');
}
else{
alert("退出");
}
}
</script>
</head>
<body>
<input name="button" type="button" onclick="openWindow()" value="点击打开新窗口"/>
</body>
</html>
