答案答案答案
<!DOCTYPE html>
<html>
<head>
<title> new document </title>
<meta http-equiv="Content-Type" content="text/html; charset=gbk"/>
<script type="text/javascript">
function openWindow()
{
var flag = confirm("是否打开网页?")
if(flag==true){
var url = prompt("请输入网址","http:www.imooc.com")
if(url !=""){
window.open(url,"_blank","width=400","height=500","menubar=no","toolbar")
}else{
window.close()
}
}
}
</script>
</head>
<body>
<input type="button" value="新窗口打开网站" onclick="openWindow()" />
</body>
</html>