console 命令行工具 X clear

console

<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=, initial-scale=">
	<meta http-equiv="X-UA-Compatible" content="">
	<title></title>
</head>
<body>
		<h>
        请做自我介绍
    </h>
    <form>
        <textarea name="textarea" rows="3" cols="20">请在此处介绍自己...
</textarea>
</body>
</html>