结对开发
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>四则运算出题器</title>
</head>
<body>
<h2 align="center" >四则运算出题器.</h2>
<form name="m1" action="show.jsp" method="post" onsubmit="return check2();" >
<table align="center">
<tr>
<td>题目数量：</td>
<td><input type="text" name="n1" vlaue="" onchange="check()"/></td>
</tr>
<tr>
<td>每行题目数量：</td>
<td><input type="text" name="n2" vlaue="" onchange="check1()"/></td>
</tr>
</table>
<p align="center" ><input type="submit" value="开始答题"></p>
<script type="text/javascript">
function check(){
var n3=m1.n1.value;
if(n3.length==0)
{
alert("题数不能为空");
return false;
}
}
function check1(){
var n4=m1.n2.value;
if(n4.length==0)
{
alert("每行题数不能为空");
return false;
}
}
function check2(){
var n3=m1.n1.value;
var n4=m1.n2.value;
if(n3.length==0)
{
alert("题数不能为空");
return false;
}
if(n4.length==0)
{
alert("每行题数不能为空");
return false;
}
}
</script>
</form>
</body>
</html>
Jiancha.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>判断对错</title>
</head>
<body>
<h2 align="center" >结果如下</h2>
<%
int a=0,b=0;
String jieguo[]=request.getParameterValues("jieguo");
String daan[]=request.getParameterValues("daan");
String timu[]=request.getParameterValues("timu");
for(int i=0;i<timu.length;i++)
{
if(jieguo[i].equals(daan[i]))
{
%>
<p align="center" style="color: green;"><%=timu[i]%> 回答正确</p>
<%
a++;
}
else
{
%>
<p align="center" style="color: red;"><%=timu[i] %><%=jieguo[i]%>? 回答有误，正确答案：<%=daan[i] %></p>
<%
b++;
}
}
%>
<form action="jiemian.jsp" method="post" >
<h2 align="center">总共<%=timu.length %>道题，回答正确<%=a %>道，回答有误<%=b %>道</h2>
<p align="center" ><input type="submit" value="继续答题"></p>
</form>
</body>
</html>
Show.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>出题界面</title>
</head>
<body>
<h2 align="center" >题目如下</h2>
<%
int h=Integer.parseInt(request.getParameter("n2"));
int x=Integer.parseInt(request.getParameter("n1"));
String timu[]=new String[x];
String daan[]=new String[x];
int i;
for(i=0;i<x;)
{
int num1=(int)(1+(Math.random()*100));
int num2=(int)(1+(Math.random()*100));
int k=(int)(1+(Math.random()*4));
if(k==1)
{
timu[i]=num1+"+"+num2+"=";
daan[i]=num1+num2+"";
i++;
}
else if(k==2&&num1>=num2)
{
timu[i]=num1+"-"+num2+"=";
daan[i]=num1-num2+"";
i++;
}
else if(k==3&&num1*num2<100)
{
timu[i]=num1+"*"+num2+"=";
daan[i]=num1*num2+"";
i++;
}
else if(k==4&&num2!=0&&num1%num2==0)
{
timu[i]=num1+"/"+num2+"=";
daan[i]=num1/num2+"";
i++;
}
else
continue;
}
%>
<form action="jiancha.jsp" method="post" >
<table align="center">
<%
int k;
for(int j=0;j<x;)
{
k=0;
%>
<tr>
<%
while(k<h)
{
%>
<td><%=timu[j] %></td>
<td><input type="hidden" name="timu" value=<%=timu[j] %>></td>
<td><input type="text" name="jieguo" /></td>
<td><input type="hidden" name="daan" value=<%=daan[j] %>></td>
<%
j++;
k++;
if(j>=x)
break;
}
%>
</tr>
<%
}
%>
</table>
<p align="center" ><input type="submit" value="提交"></p>
</form>
</body>
</html>
截图：