Javaweb版四则运算 - 码农教程

显示出题界面shu01.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">

<title>Insert title here</title>
</head>
<body text="black"  style="background: url(img/abc.jpg);background-size:100%">
<form action="shu02.jsp" method="get"/>
<form action="shu03.jsp" method="get"/>
<div style="background-color: white">
出题数目<input type="text" name="number" id="number"/>
</div>
<div style="background-color: white">
每行数目<input type="text" name="num" id="num"/>
</div>
<input type="submit" value="提交"/>
</body>
</html>

出题界面shu02.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<body text="black"  style="background: url(img/timg2RFSY8VY.jpg);background-size:100%">
<%
int x = Integer.parseInt(request.getParameter("number"));
int y = Integer.parseInt(request.getParameter("num"));
String suanshi[]=new String[x];
int sum[]=new int[x];
int w=0;
for(int i=0;i<x;i++)
{
    int n1=(int)Math.floor(Math.random()*100+1);
    int n2=(int)Math.floor(Math.random()*100+1);
    String fuhao[]=new String[4];
    int f=(int)Math.floor(Math.random()*4+1);
    if(f==1)
    {
        suanshi[i]=n1+"+"+n2+"=";
        sum[i]=n1+n2;
    }
    else if(f==2)
    {
        if(n1>n2)
        {
            suanshi[i]=n1+"-"+n2+"=";
            sum[i]=n1-n2;
        }
        else
        {
            suanshi[i]=n2+"-"+n1+"=";
            sum[i]=n2-n1;
        }
        
    }
    else if(f==3)
    {
        suanshi[i]=n1+"*"+n2+"=";
        sum[i]=n1*n2;
    }
    else if(f==4)
    {
        if(n2!=0)
        {
        suanshi[i]=n1+"/"+n2+"=";
        sum[i]=n1/n2;
        }
        else
        {
            suanshi[i]=n2+"/"+n1+"=";
            sum[i]=n2/n1;
        }
    }
    if((i+1)%y==0)
    {
        w++;
        System.out.println();
    }
    
}

%>
<title>出题</title>
</head>
<body>
<form action="shu03.jsp"/>
<table>

<% for(int i=0;i<w;i++)
{%>
<tr>
<% 
for(int h=i*(y-1);h<=i*(y-1)+y-1;h++){
    %>

<td><%=suanshi[h] %></td>
<td><input type="text" name="sdaan" /></td>
<td><input type="hidden" name="zdaan"  value=<%=sum[h] %>></td>
<%}%>

</tr>

<%
}if(w*y<x)
    { for(int j=w*y;j<x;j++)
    {%>
    <tr>
<td><%=suanshi[j] %></td>
<td><input type="text" name="sdaan" id="sdaan"/></td>
<td><input type="hidden" name="zdaan" id="zdaan" value=<%=sum[j] %>/></td>
</tr>
<%}} %>
    
<tr>
<td>
<input type="submit" value="提交"/>
</td>
</tr>

</table>

</body>
</html>

结果进行比较核对界面 shu03.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>校对答案</title>
</head>
<body text="black"  style="background: url(img/timgQUBYDDDI.jpg);background-size:100%">
<%
int z=0;
int c=0;
String sdaan[]=request.getParameterValues("sdaan");
String zdaan[]=request.getParameterValues("zdaan");
for(int i=0;i<sdaan.length;i++)
{
    if(sdaan[i].equals(zdaan[i]))
    {
        z++;%>
        <p>第<%=i+1 %>正确</p>
<% 
    }
else
{
    c++;%>
    <p>第<%=i+1 %>不正确,输入为<%=sdaan[i]%>,正确答案是<%=zdaan[i] %></p>
    <% 
}
}
    
%>
<p>你答对了<%=z %>道题，答错了<%=c %>道题</p>

<form action="shu01.jsp"></form>
<input type="submit" value="重新答题"/>

</body>
</html>

开始的时候没有思路，就在网上找了代码，看看了怎么在里面插入代码，怎么进行界面跳转，怎么进行数据在不同界面的传递，通过这一道题，学会了很多；

原文地址：https://www.cnblogs.com/1234yyf/p/11818276.html