JSP第三周作业3.17

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="麻辣豆腐：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，红焖大虾：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"%>
<%@ 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</h1>
<%@ include file="index1.jsp"%>
</body>
</html>

　　

3

<%@ 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;">
        <jsp:include page="english/english.txt" />
        <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>

　　

posted @ 2021-03-27 16:57  蒋俊宇  阅读(73)  评论(0)    收藏  举报