jsp第二周作业
1.p39 实验2 显示当前时间，并输出上午(0-12)好,下午好(13-17),晚上好(18-23)
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'index.jsp' starting page</title>
</head>
<body>
<script>
var userTime = new Date();
var hour = userTime.getHours();
var minute = userTime.getMinutes();
var second = userTime.getSeconds();
var millisecond = userTime.getMilliseconds();
document.write("<h2>浏览时间："+hour+":"+minute+":"+second+":"+millisecond+"<br></h2>");
</script>
<%
//java注释
Date date= new Date();
date.getHours();
if(date.getHours()>=0&&date.getHours()<=12){
out.print(date+"早上好");
}else if(date.getHours()>=13&&date.getHours()<=17){
out.print(date+"中午好");
}else{
out.print(date+"下午好");
};
%>
<br>
</body>
</html>
2. 使用声明方法,在页面调用该方法,判断2023是不是闰年
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'MyJsp.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">
-->
</head>
<body>
<!-- 判断闰年声明方法 -->
<%!
String Run(int year){
if(year%4==0&&year%100!=0||year%400==0){
return year+"是闰年";
}else{
return year+"不是闰年";
}
}
%>
<% String y=Run(2023);
out.print(y);
%>
</body>
</html>
3.表达式+程序段 循环输出5条hr,长度分别为100px-500px
<hr width="<%=i%>"
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>My JSP 'index1.jsp' starting page</title>
</head>
<body>
<%--jsp注释 --%>
<%
for (int i = 1; i <= 5; i++) {
%>
<hr width="<%=i * 100%>px">
<%
}
%>
</body>
</html>
4.在第一题上加Java注释,第二题加html注释,第三题加jsp注释
