<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>字符串</title>
</head>
<body>
<p>
<?php echo '同学们,'.'这节过！！！不要纠结系统提示。有时候系统也是错的';?>
</p>
</body>
</html>
