1
<%@ page contentType = "text/html"%> <%@ page 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:</br> <% String str = "麻婆豆腐:20.6元,红烧肉:68.9元"; %> <br> <%=str%></br> <br><b><i>消费总和;<%=getPriceSum(str) %></i></b></br> <br>李四的菜单:</br> <% str = "剁椒鱼头:62.9元,烤鸭:199元,油闷大虾;289.9元"; %> <br> <%=str%></br> <br><b><i>消费总和;<%=getPriceSum(str) %></i></b></br> </p> </body> </HTML>
2
<%@ page contentType="text/html" %> <%@ page pageEncoding="utf-8" %> <html> <body bgcolor=cyan> <br>英文课文(English Text):</br> <p style="font-family: 宋体;font-size: 18;color: black;"> <br>课文音频(English Audio):</br> <jsp:include page="audio.jsp" /> </p> </body> </html>>
<%@ page contentType="text/html" %> <%@ page pageEncoding="utf-8" %> <html> <body bgcolor=pink> <embed src="english/english.mp3" autostart=false> 课文音频 </embed> </body> </html>
3
<%@ page contentType="text/html" %> <%@ page 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 contentType="text/html" %> <%@ page 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>>