console 命令行工具 X clear
console
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">

<head>
	<title>新建网页</title>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
	<meta name="description" content="" />
	<meta name="keywords" content="" />
	<script type=text/javascript>

	</script>

	<style type="type/css">
	</style>
</head>

<body>
	<p>
		<span>我的第一个span</span>
    </p>	
</body>
</html>