一、编写两个JSP页面计算并显示梯形的面积
二、代码
main.jsp
<%@ page contentType = "text/html;charset=utf-8" %>
<HTML>
<BODY>
<jsp:include page="lader.jsp">
<jsp:param name="topLine" value="15"/>
<jsp:param name="baseLine" value="30"/>
<jsp:param name="height" value="20"/>
</jsp:include>
</BODY>
</HTML>
lader.jsp
<%@ page contentType = "text/html; charset=GB2312" %>
<HTML>
<BODY>
<%
String topLine = request.getParameter("topLine");
String baseLine = request.getParameter("baseLine");
String height = request.getParameter("height");
double a = Double.parseDouble(topLine);
double b = Double.parseDouble(baseLine);
double h = Double.parseDouble(height);
double area = (a+b)*h/2;
%>
<p> 梯形上底为：<%=a %>
<br>
<p> 梯形下底为：<%=b %>
<br>
<p>梯形高为：<%=h %>
<br>
<p> 梯形面积为：
<%=area %>
</BODY>
</HTML>
三、结果
