JavaScript变量
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<script type="text/javascript">
var name,age
name='jack'
age=25
document.write('名字'+name+'年龄'+age)
alert(typeof(name))
</script>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
</head>
<body>
<script type="text/javascript">
var name,age
name='jack'
age=25
document.write('名字'+name+'年龄'+age)
alert(typeof(name))
</script>
</body>
</html>