一、作业要求:
p37 习题7,求梯形面积
二、源码分析
2.1 paramTag.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>param动作标记</title>
</head>
<body>
<H2>param动作标记</H2>
<H3>作业要求:p37 习题7,求梯形面积</H3><HR><BR>
<jsp:include page="paramTag_trapezoid.jsp">
<jsp:param name="top" value="8"></jsp:param>
<jsp:param name="bottom" value="13"></jsp:param>
<jsp:param name="height" value="7"></jsp:param>
</jsp:include>
</body>
</html>
2.2 paramTag_trapezoid.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
<%
String top=request.getParameter("top");
String bottom=request.getParameter("bottom");
String height=request.getParameter("height");
Float result=(Float.parseFloat(top)+Float.parseFloat(bottom))*Float.parseFloat(height)/2;
out.print("梯形的上底为:"+top+",");
out.print("梯形的下底为:"+bottom+",");
out.println("梯形的高为:"+height+"<br/>");
out.print("得出梯形的面积为:"+result);
%>
<%--<p>梯形的结果为:<% = result %></p>--%>
</body>
</html>
三、结果图