console 命令行工具 X clear

console

<!DOCTYPE html>
<html>
<head>
<title>three</title>
<meta charset = “utf-8”
</head>
<body>
<ol type=“A”>
   <li>Spring</li>
<li>Summer</li>
<li>Fall</li>
   <li>Winter</li>
</ol>
</body>
  </html>