JSP第三次作业

 

<%@ 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>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->
  </head>
  
  <body>
    <%!double r = 2, a = 3, b = 4, c = 5;%>
    <br>
    <jsp:include page="circle.jsp">
        <jsp:param value="<%=r %>" name="name3" />
    </jsp:include>
    <br>
    <jsp:include page="ladder.jsp">
        <jsp:param value="<%=a %>" name="name1" />
        <jsp:param value="<%=b %>" name="name2" />
        <jsp:param value="<%=c %>" name="name3" />
    </jsp:include>
  </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>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'circle.jsp' starting page</title>
    
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>
  
  <body>
    <%
    String sideR = request.getParameter("name3");
    double r = Double.parseDouble(sideR);
    
%>
<%!

public String getArea(double r) {
        double area = r * r * 3.14;
        return "" + area;
    }%>

<br>

<br>
圆的半径是：<%=r%>
<br>
圆的面积是：<%=getArea(r)%>
  </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>
  <head>
    <base href="<%=basePath%>">
    
    <title>My JSP 'ladder.jsp' starting page</title>
    
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">    
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>
  
  <body>
    <%
    String name1 = request.getParameter("name1");
    String name2 = request.getParameter("name2");
    String name3 = request.getParameter("name3");
    double a = Double.parseDouble(name1);
    double b = Double.parseDouble(name2);
    double c = Double.parseDouble(name3);
%>
<%!
public String getArea(double a, double b, double c) {
        double area = ((a + b) * c) / 2;
        return "" + area;
    }%>

<br>

<br>
梯形的上底、下底、高是：
<%=name1%>
<%=name2%>
<%=name3%>
<br>
梯形的面积是：
<%=getArea(a, b, c)%>
  </body>
</html>

 

posted @ 2020-03-23 12:34  逝*无痕  阅读(106)  评论(0)    收藏  举报