简单web四则运算出题 

 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 >
11     <form action="chuti.jsp" method="post">
12     <center>
13     <h2>自动出题</h2>
14     <h3><font>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</font></h3>
17     <h3><font>出题数：<input type="text" name ="chutishu"  ></font><br></h3>
18     </center>
19     </form>
20     
21      
22     
23 </body>
24 </html>
 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     public String putong(){
11         char [] a=new char[4];
12         a[0]='+';a[1]='-';a[2]='*';a[3]='/';
13         int num1=(int)(Math.random()*10+1);
14         int num2=(int)(Math.random()*10+1);
15         int num=(int)(Math.random()*4+0);
16         String s=num1+" "+a[num]+" "+num2+" =?";
17         return s;
18     }
19     %>
20     <%!
21     public String zhenfenshu(){
22         char [] a=new char[4];String m,n="";
23         a[0]='+';a[1]='-';a[2]='*';a[3]='/';
24         int num1=(int)(Math.random()*10+1);
25         int num2=(int)(Math.random()*10+1);
26         for(;num1==num2;num1=(int)(Math.random()*10+1),num2=(int)(Math.random()*10+1)){}
27             if(num1<num2){
28                 m=num1+"/"+num2;
29             }
30             else
31                 m=num2+"/"+num1;
32             
33         for(num1=(int)(Math.random()*10+1),num2=(int)(Math.random()*10+1);num1==num2;num1=(int)(Math.random()*10+1),num2=(int)(Math.random()*10+1)){}    
34         
35             if(num1<num2){
36                 n=num1+"/"+num2;
37             }
38             else 
39                 n=num2+"/"+num1;
40             
41         int num=(int)(Math.random()*4+0);
42         String s=m+" "+a[num]+" "+n+" =?";
43         
44         return s;
45     }%>
46     
47 <body>
48     <%
49     String type = (String)request.getParameter("type");
50     int chutishu=Integer.parseInt(request.getParameter("chutishu"));
51     int j=0;
52      String []a=new String [chutishu];
53     
54     for(j=0;j<chutishu;j++){
55         if(type.equals("zhengshu"))
56             a[j]=putong();
57         else if(type.equals("zhenfenshu"))
58             a[j]=zhenfenshu();
59         else if(type.equals("douyou")){
60             int m=(int)(Math.random()*2+1);
61             if(m==1)
62                 a[j]=putong();
63             else if(m==2)
64                 a[j]=zhenfenshu();
65         }
66         
67         for(int k=0;k<j;k++){
68             if(a[k].equals(a[j]))
69                 {j--;break;}
70             else
71                 continue;
72              }
73         
74     }
75     
76     for(j=0;j<chutishu;j++){%>
77     <%=j+1+"、  "+a[j]%><br>
78     <%} %>
79     
80 </body>
81 </html>

 

posted @ 2017-03-01 22:24  发酸的丶牛奶  阅读(219)  评论(0)    收藏  举报