<!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 a=confirm("是否需要打开一个窗口？"); if (a==true){ var url=prompt("通过输入对话框，确定打开的网址","http://www.imooc.com"); } if (url!=null){ window.open (url,'_blank','width=400px,height=500px,menubar=0,toolbar=0'); } else {alert("再见！");} else {alert("再见！");} } </script> </head> <body> <input type="button" value="新窗口打开网站" onclick="openWindow()" /> </body></html>
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