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                        /JavaScript入門(mén)篇

請(qǐng)問(wèn)為什么點(diǎn)擊之后沒(méi)有對(duì)話(huà)框彈出呢？

<!DOCTYPE html>
<html>
?<head>
? <title> new document </title>?
? <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>??
? <script type="text/javascript">?
? function openWindow()
??? {
????? var open=confirm("是否打開(kāi)？");
??? // 新窗口打開(kāi)時(shí)彈出確認(rèn)框，是否打開(kāi)
???? {
????? if(open)
??????? {var url=prompt("請(qǐng)輸入要打開(kāi)的網(wǎng)址"，"http：//idcbgp.cn/");
? // 通過(guò)輸入對(duì)話(huà)框，確定打開(kāi)的網(wǎng)址，默認(rèn)為 http：//idcbgp.cn/?
????????? if(url != null)
??????????? {window.open(url,'_blank','width=400,height=500,menubar=no,toolbar=no');
??????????? }
????????? else
?????????? {alert ("再見(jiàn)");}
??????? }
??? //打開(kāi)的窗口要求，寬400像素，高500像素，無(wú)菜單欄、無(wú)工具欄。}
?????? else
??????? {alert("再見(jiàn)");}
????? }
??? }
??
? </script>
?</head>
?<body>
??? <input type="button" value="新窗口打開(kāi)網(wǎng)站" onclick="openWindow()" />
?</body>
</html>