JSP生成九九乘法表的简单实例

网络编程 2024/11/15 佚名

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JSP生成九九乘法表的简单实例

一用表达式和脚本方式实现九九乘法表

<%@ page language="java" import="java.util.*" contentType="text/html; charset=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%>" rel="external nofollow" >
  
  <title>My JSP 'exercise.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" rel="external nofollow" >
    -->
 
 </head>
 
 <body>
  <%!
    //返回九九乘法表对应的HTML代码，通过表达式来调用，在页面上显示
    String printMultiTable1()
    {
     String s = "";
     for(int i=1;i<=9;i++)
     {
       for(int j=1;j<=i;j++)
       {
        s+=i+"*"+j+"="+(i*j)+"&nbsp;&nbsp;&nbsp;&nbsp;";
       }
       s+="<br>"; //追加换行标签
     }
     return s;
    }
   
    //JSP内置out对象，使用脚本方式调用，打印九九乘法表
    void printMultiTable2(JspWriter out) throws Exception
    {
      for(int i=1;i<=9;i++)
      {
       for(int j=1;j<=i;j++)
       {
        out.println(i+"*"+j+"="+(i*j)+"&nbsp;&nbsp;&nbsp;&nbsp;");
       }
       out.println("<br>"); //追加换行标签
     }
    }
   
  %>
  <h1>九九乘法表</h1>
  <hr>
  <%=printMultiTable1()%>
  <br>
  <% printMultiTable2(out);%>
  <br>
  
 </body>
</html>

二运行效果