<!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 mywindow = confirm("確定要打開網頁嗎？");//选择框 if(mywindow){ var site = prompt("请输入网址","http://www.imooc.com");//输入框 if(site==""){ alert("網址不能為空！");//警告框 return false } window.open(site,'_blank','width=400,height=500,meun=no,toolbar=no'); }else{ return false; } } </script> </head> <body> <input type="button" value="新窗口打开网站" onclick="openWindow()" /> </body> </html>