注释的作用

0<%@ page language=“java” import=“java.util.*” pageEncoding=“UTF-8”%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"?/"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<title>My JSP '2-1.jsp' starting page</title>

<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">    
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->

<% int a=2; %> <%= a %> <%-- 你好--%> 你也好