1.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)。
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'index.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>
<%Date h=new Date();
int hour=h.getHours();
int minute=h.getHours();//java注释
int second=h.getSeconds();
out.print("当前时间："+hour+":"+minute+":"+second+"");
if(hour>=0&&hour<=12){
out.print("早上好!");
}else if(hour>=13&&hour<=17){
out.print("下午好!");
}else if(hour>=18&&hour<=23){
out.print("晚上好!");
}
%>
</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"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head><!-- 我是一个HTML注释~~~~ --> </head> <body> <%!boolean s(int year) { if (year%4==0&&year%100!=0||year%400==0){ return true; } else { return false; } }%> <% boolean year=s(2023); out.print(year); %> </body> </html>
3.表达式+程序段 循环输出5条hr,长度分别为100px-500px
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <base href="<%=basePath%>"> <title>My JSP 'index.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> <%--jsp的注释呀~~~~~ --%> <% for(int a=1;a<=5;a++){ %> <h2><hr width="<%=a*100%>px" ></h2> <% }%> </body> </html>
4.依次写注释
