<!DOCTYPE?HTML>
<html>
<head>
<meta?http-equiv="Content-Type"?content="text/html;?charset=utf-8"?/>
<title>alert</title>
??<script?type="text/javascript">
??function?rec(){
????var?mychar="I?love?JavaScript";
????var?mychars="I?love?JavaScript";
alert(mychar);
alert(mychars);
??}
??</script>
</head>
<body>
????<input?name="button"?type="button"?onClick="rec()"?value="點擊我，彈出對話框"?/>
</body>
</html>這樣就是兩次確認
