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四则运算 web 版

news 来源：原创 2024/5/14 13:40:16

一、设计思路

　　上次基本上已经差不多了，这次主要写带括号及分数的运算，解决了一大难点，也是一个核心步骤。

二、源代码

　　首页：

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 4 <html>
 5 <head>
 6 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 7 <title>自动出题</title>
 8 </head>
 9 
10 <body style="background: url(image/backImage.jpg)">
11     <form action="Ct" method="post">
12     <center>
13     <h2>自动出题</h2>
14     <h3>出题类型:<input type="radio" name="type" value="zhengshu">整数
15                      <input type="radio" name="type" value="zhenfenshu">真分数
16                      <input type="radio" name="type" value="douyou">都有<br>
17         乘除法:<input type="radio" name="chengchu" value="1">有
18                    <input type="radio" name="chengchu" value="0">无<br>
19         括号:<input type="radio" name="kuohao" value="1">有
20                      <input type="radio" name="kuohao" value="0">无<br>
21         出题范围：0到<input type="text" name ="fanwei"  ><br>
22         参与计算数：<input type="text" name ="num"  ><br>
23         出题数：<input type="text" name ="chutishu"  ><br>
24         结果有无余数:<input type="radio" name="yushu" value="1">有
25                      <input type="radio" name="yushu" value="0">无(二元运算)<br>
26         结果有无负数:<input type="radio" name="fushu" value="1">有
27                      <input type="radio" name="fushu" value="0">无<br>
28     </h3>
29         <input type="submit" value="出题">
30         
31     </center>
32     </form>
33     
34      
35     
36 </body>
37 </html>

　　出题界面：

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8" %>
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 4 <html>
 5 <head>
 6 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 7 <title>自动出题</title>
 8 </head>
 9     
10 <body style="background: url(image/backImage.jpg)">
11     <% 
12     int chutishu=(int)request.getAttribute("chutishu"); 
13     String[] timu=(String[])request.getAttribute("timu"); 
14     String[] daan=(String[])request.getAttribute("daan");
15     JspWriter mout=pageContext.getOut();
16     %>
17     <center><form action="jieguo.jsp" method="post">
18     <% for(int i=0;i<chutishu;i++){
19         mout.print((i+1)+". "+timu[i]+"<br>");
20      %>
21         <input type="text" name ="<%=i%>" ><br>
22     <%}
23     session.setAttribute("chutishu", chutishu);
24     session.setAttribute("daan", daan);
25     session.setAttribute("timu", timu);
26     %>
27     <input type="submit" value="提交">
28     </form>    </center>
29 
30 
31 </body>
32 </html>

　　显示答案界面：

 1 <%@ page language="java" contentType="text/html; charset=UTF-8"
 2     pageEncoding="UTF-8"%>
 3 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
 4 <html>
 5 <head>
 6 <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
 7 <title>答案</title>
 8 </head>
 9 <body style="background: url(image/backImage.jpg)">
10 <%
11     int chutishu=(int)session.getAttribute("chutishu"); 
12     String[] daan=(String[])session.getAttribute("daan");
13     String[] timu=(String[])session.getAttribute("timu"); 
14     int t=0,f=0;
15     JspWriter mout=pageContext.getOut();
16     for(int i=0;i<chutishu;i++){
17         String s=request.getParameter(""+i+"");
18         mout.print(i+1+"."+timu[i]);%>&nbsp;&nbsp;&nbsp;<%
19         mout.print("你的答案:"+s);%>&nbsp;&nbsp;&nbsp;<%
20         mout.print("正确答案:"+daan[i]);%>&nbsp;&nbsp;&nbsp;<%    
21         //判断正误及计数
22         if(s.equals(daan[i])||(s+".0").equals(daan[i]))
23             {t++;%>&nbsp;&nbsp;&nbsp;&nbsp;<%mout.print("√<br><br>");}
24         else
25             {f++;%>&nbsp;&nbsp;&nbsp;&nbsp;<%mout.print("×<br><br>");}
26         
27     }
28     %>&nbsp;&nbsp;<%mout.print("共"+chutishu+"道题");%>&nbsp;&nbsp;&nbsp;&nbsp;<%
29     mout.print("对:"+t);%>&nbsp;&nbsp;&nbsp;&nbsp;<%
30     mout.print("错:"+f);
31     %>
32 </body>
33 </html>

三、截图

转载于:https://www.cnblogs.com/du1269038969/p/6678699.html