7

1.

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>



<html>
  <head>
   
  </head>
  
  <body bgcolor = pink>
     <% double price=98.76; %>
        商品编号A1，价格8765
        <a href="b11.jsp?id=A1&price=8765">购买</a><br>
        商品编号A2,价格<%=price %>
        <a href="b11.jsp?id=A2&price=<%=price%>">购买</a><br>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>



<html>
  <head>
   
  </head>
  
  <body bgcolor = pink>
    <%
    String id=request.getParameter("id");
    String price=request.getParameter("price");
     %>
     商品编号：<%=id %><br>
     商品价格：<%=price %>
  </body>
</html>

　　

2

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>



<html>
  <head>
   
  </head>
  
  <body bgcolor = pink>
  <form action="b22.jsp" method="post" name=form>
    输入运算数，符号：<br>
    <input type="text" name="numberone">
    <select name="operator">
      <option selected="selected" value="+">+
      <option value="-">-
      <option value="*">*
      <option value="/">/
    </select>
    <input type="text" name="numbertwo"><br>
    <input type="submit" name="submit" value="提交">
    </form>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>



<html>
  <head>
   
  </head>
  
  <body >
   <%
   
   String numberone=request.getParameter("numberone");
   String numbertwo=request.getParameter("numbertwo");
   String operator=request.getParameter("operator");
   
   if(numberone==null||numberone.length()==0){
    response.sendRedirect("b2.jsp");
    return;
   }
    else if(numbertwo==null||numbertwo.length()==0){
    response.sendRedirect("b2.jsp");
    return;
   }
    try{
     double a=Double.parseDouble(numberone);
       double b=Double.parseDouble(numbertwo);
       double r=0;
       if(operator.equals("+"))
         r=a+b;
       else if(operator.equals("-"))
         r=a-b;
       else if(operator.equals("*"))
         r=a*b;
       else if(operator.equals("/"))
         r=a/b;
       out.print(a+" "+operator+" "+b+"="+r);
       }
       catch(Exception e){
       out.println("请输入正确");
       }
    
    %>
    
  </body>
</html>

 3

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>



<html>
  <head>
   
  </head>
  
  <body bgcolor = pink>
     <form action="b33.jsp" >
     账户名：<input type="text" name="uname"><br>
     密    码：<input type="password" name="upwd"><br>
     <input type="submit" value="提交">
     
     
     
     </form>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>



<html>
  <head>
   
  </head>
  
  <body bgcolor = pink>
     <%
     request.setCharacterEncoding("utf-8");
     String uname=request.getParameter("uname");
     String upwd=request.getParameter("upwd");
     if(uname.equals(upwd)){
       request.getRequestDispatcher("ok.jsp").forward(request,response);
       }
      else{
       response.sendRedirect("no.jsp");
      }
     
     
     
     
       %>
   
  </body>
</html>

 

5

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>



<html>
  <head>
   
  </head>
  
  <body bgcolor = pink>
   <form action="b55.jsp" >
  
  请输入一个数字 <input type="text" name="num"><br>
 
 <input type="submit" value="提交">
</form>
  </body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>



<html>
  <head>
   
  </head>
  
  <body bgcolor = pink>
   <%
  request.setCharacterEncoding("utf-8");
  String num=request.getParameter("num");
  double n=Double.parseDouble(num);
  for(int i=0;i<n;i++){
  out.println("欢迎");}
  
   %>
  </body>
</html>

 

6

 

posted @ 2022-04-17 12:29  我真呵呵了  阅读(29)  评论(0)    收藏  举报