1.P37 实验1 消费总和
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> <%@ page import="java.util.regex.Pattern"%> <%@ page import="java.util.regex.Matcher"%> <%!public double getPriceSum(String input) { Pattern pattern; Matcher matcher; String regex = "-?[0-9][0-9]*[.]?[0-9]*"; pattern = Pattern.compile(regex); matcher = pattern.matcher(input); double sum = 0; while (matcher.find()) { String str = matcher.group(); sum += Double.parseDouble(str); } return sum; }%> <html> <body bgcolor=cyan> <p style="font-family:黑体;font-size:20"> <br>张三的菜单： <% String str = "麻婆豆腐:20.6元,红烧肉：68.9元"; %> <br><%=str%> <br> <b><i>消费总和：<%=getPriceSum(str)%></i> </b> <br>李四的菜单： <% str = "剁椒鱼头：62.9元，烤鸭：199元，红焖大虾：289.9元"; %> <br><%=str%> <br> <b><i>消费总和：<%=getPriceSum(str)%></i> </b> </p> </body> </html>
2.P39 实验2 日期和时间
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <%@ page import="java.time.LocalDate"%> <%@ page import="java.time.LocalTime"%> <% LocalDate date = LocalDate.now(); LocalTime time = LocalTime.now(); %> <h2> 用户在<%=date.getYear()%>/<%=date.getMonthValue()%>/ <%=date.getDayOfMonth()%><br> <%=time.getHour()%>:<%=time.getMinute()%>:<%=time.getSecond()%>访问了网页. </h2>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <hTML> <body> <h1> 显示访问网页的日期、时间<br>(服务器端的日期、时间) </h1> <%@include file="time.jsp"%> </body> </hTML>
3.实验三 听英语
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <body bgcolor=cyan> <br>英文课文(ENglish Text): <p style="font-family:宋体;font-size:18;color:black"> <jsp:include page="english/english.txt" /> <br>课文音频(English Audio): <jsp:include page="audio.jsp" /></p> </body> </html> <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <body bgcolor=pink> <embed src="english/english.mp3" autostart=false> 课文音频 </embed> </body> </html>