abstract：<!DOCTYPE html><html lang="en"><head><meta charset="UTF-8"><title>php中文网</title></head><body><form action="catadd.php"
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>php中文网</title>
</head>
<body>
<form action="catadd.php" method="POST">
<input type="text" name="catname">
<input type="submit" value="提交">
</form>
</body>
</html>