chuqiyuan

JSP第三次作业

main

<body>
    <jsp:include page="cricle.jsp">
        <jsp:param value="4" name="R"/>
    </jsp:include>
    <br>
 <jsp:include page="ladder.jsp">
        <jsp:param value="3" name="shangdi"/>
        <jsp:param value="2" name="xiadi"/>
        <jsp:param value="6" name="gao"/>
    </jsp:include>
  </body>

ladder

<body>
   <%
        String shangdi = request.getParameter("shangdi");
        String xiadi = request.getParameter("shangdi");
        String gao = request.getParameter("xiadi"); 
        int shang = Integer.parseInt(shangdi);
        int xia = Integer.parseInt(xiadi);
        int g = Integer.parseInt(gao);
        out.println("上底为：" + shangdi + "，下底为：" + xiadi + "，高为：" + gao);
        out.print("梯形的面积为：" + ((shang + xia) * g) / 2);
    %>
  </body>

cricle

 <body>
   <%     String r = request.getParameter("R"); 
           int R = Integer.parseInt(r);
           out.print("园的半径为："+ r +"   "+ "园的面积为：" + 3.14 * R * R);
       %>
  </body>

posted on 2020-03-21 19:34  chuqiyuan  阅读(109)  评论(0)  编辑  收藏  举报