jsp第三周

1 消费总和

<%@ page language="java" contentType="text/html" import="java.util.*"  pageEncoding="utf-8"%>
<%@ page import="java.util.regex.Pattern"%>
<%@ page import ="java.util.regex.Matcher"%>
<!DOCTYPE html>
<html>
<head>

</head>
<%!
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;
    }
 %>

<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,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 听英语

<%@ 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>
  <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 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>
  <body bgcolor=pink>
  <embed src="english/english.mp3"autostart=false>
    课文音频
   </embed>
  </body>
</html>

  

 

posted @ 2021-03-29 19:25  伏处  阅读(47)  评论(0编辑  收藏  举报