JavaScript onchange

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>

<select onchange="fun3()">
<option>上海</option>
<option>北京</option>
<option>河北</option>
</select>

<script>
function fun3() {
alert(1234);
}
</script>


</body>
</html>

posted @ 2019-10-31 13:42  一只小白呀  阅读(339)  评论(0)  编辑  收藏  举报