<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
<jsp:include page="yuan.jsp">
<jsp:param name="banJing" value="1" />
</jsp:include>
<br>
<jsp:include page="ti.jsp">
<jsp:param value="10" name="shang" />
<jsp:param value="5" name="xia" />
<jsp:param value="15" name="gao" />
</jsp:include>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
<%
String a = request.getParameter("shang");
String b = request.getParameter("xia");
String c = request.getParameter("gao");
double shang = Double.parseDouble(a);
double xia = Double.parseDouble(b);
double gao = Double.parseDouble(c);
out.print("梯形面积为：" + ((shang + xia) * gao / 2));
%>
</body>
</html>
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Insert title here</title>
</head>
<body>
<%
String banJing = request.getParameter("banJing");
double r = Double.parseDouble(banJing);
double pai = 3.14;
out.print("圆的面积为"+pai*r*r);
%>
</body>
</html>