第二次作业.... 

<%@ 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 'index.jsp' starting page</title>
	
	
	<link rel="stylesheet" type="text/css" href="styles.css">

  </head>
  
  <body>
  <%
  for(int i=1;i<6;i++){%>
  <hr width="<%=i*100%>" >
  <%} %>
  
	
  </body>
</html>

　　

 

 

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"%>
<%
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 'index.jsp' starting page</title>
	
	
	<link rel="stylesheet" type="text/css" href="styles.css">

  </head>
  
  <body>
   <% 
   Calendar c=Calendar.getInstance();
		int a=c.get(Calendar.HOUR);
		int m=c.get(Calendar.MINUTE);
		if(0<=a&&a<=12)
		out.print("早上好");
		if(13<=a&&a<=17)
		out.print("早上好");
		if(18<=a&&a<=23)
		out.print("早上好");
		out.print("现在是"+a+":"+m);
		
		%>
  </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

闰年：能被4整除但不能被100整除或者能被400整除

<%@ 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 'index.jsp' starting page</title>
	
	
	<link rel="stylesheet" type="text/css" href="styles.css">

  </head>
  
  <body>
   <%!int a=2023;%>
   <% if(a/4==0&&a/100!=0||a/4==0)
        out.print("2023是闰年");
       else
        out.print("2023是不闰年");
  %>
  		 
	
  </body>
</html>

　　

 

 

 3.表达式+程序段   循环输出5条<hr>,长度分别为100px-500px

 

posted @ 2022-03-09 11:48  陈华涛  阅读(38)  评论(0)    收藏  举报