BOF 或 EOF 中有一个是“真”，或者当前的记录已被删除
<%@ Language=VBScript %>
<% option explicit %>
<!--#include file="conn.asp"-->
<%
if session("studentname")="" then
Response.Redirect "default.asp"
end if
%>
<html>
<head>
<title>考试界面----再线考试系统</title>
</head>
<script language="javascript">
function attention()
{
alert('时间到了,请交卷!');
document.getElementById('submit').click();
}
setTimeout("attention()",<%=session("testtime")*60*1000%>)
</script>
<body bgcolor="#FFFFFF" background=images/backimage.gif>
<p align="center"><b><font face="宋体" size="5" color="#FF0000"><%=session("selectsubjectname")%>考试</font></b></p>
<%
if request.form("submit1")="开始考试" then
%>
<form name="testform" method="post" action="result.asp">
<table border="0" cellspacing="0" bordercolor="#111111" width="100%" >
<tr>
<td width="100%" height="25"><b><font size="3" color="#000080">一、单项选择题(每题<%=session("singleper")%>分,共<%=session("singlenumber")%>题)</font></b></td>
</tr>
</table>
<%
dim i,sql,rs,count,temp,strid1,strid2
strid1=""
strid2=""
randomize
for i=1 to session("singlenumber")
'for i=1 to CInt(CStr(Request.Cookies("singlenumber")))
set rs=server.createobject("adodb.recordset")
' sql="select * from question where subjectname='"& Request.Cookies("selectsubjectname") & "'and type='单选题' and haveselect=0 "
sql="select * from question where subjectname='"&session("selectsubjectname") & "'and type='单选题' and haveselect=0 "
rs.open sql,conn,3,4
count=rs.recordcount
temp=fix(count*rnd(10))
rs.move temp
rs("haveselect")=1
strid1=strid1 & rs("ID") & ","
%>
<table border="0" cellspacing="1" style="border-collapse: collapse" bordercolor="#C0C0C0" width="100%" cellpadding="0">
<tr>
<td width="100%" bgcolor="#EFEFEF" height="20"> <b><%=i%>、<%=rs("question")%></b></td>
</tr>
<%
if rs("A")<>"" then
%>
<tr>
<td width="100%"> <input type="radio" name="NO<%=rs("id")%>" value="A">A、<%=rs("A")%></td>
</tr>
<%
end if
if rs("B")<>"" then
%>
<tr>
<td width="100%"> <input type="radio" name="NO<%=rs("id")%>" value="B">B、<%=rs("B")%></td>
</tr>
<%
end if
if rs("C")<>"" then
%>
<tr>
<td width="100%"> <input type="radio" name="NO<%=rs("id")%>" value="C">C、<%=rs("C")%></td>
</tr>
<%
end if
if rs("D")<>"" then
%>
<tr>
<td width="100%"> <input type="radio" name="NO<%=rs("id")%>" value="D">D、<%=rs("D")%></td>
</tr>
<%
end if
%>
</table>
<%
rs.update
next
'rs.close
'set rs=nothing
%>
<table border="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="100%" id="AutoNumber3">
<tr>
<td width="100%" height="25"><b><font color="#000080" size="3">二、多项选择题(每题<%=session("multiper")%>分,共<%=session("multinumber")%>题。每题至少有1项正确的答案，少选、多选、错选均不得分)</font></b></td>
</tr>
</table>
<%
randomize
'for i=1 to CInt(Request.Cookies("multinumber"))
for i=1 to session("multinumber")
set rs=server.createobject("adodb.recordset")
' sql="select * from question where subjectname='" & Request.Cookies("selectsubjectname") & "'and type='多选题' and haveselect=0 "
sql="select * from question where subjectname='"&session("selectsubjectname") & "'and type='多选题' and haveselect=0 "
rs.open sql,conn,3,4
count=rs.recordcount
temp=fix(count*rnd(10))
rs.move temp
rs("haveselect")=1
strid2=strid2 & rs("ID") & ","
%>
<table border="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="100%" id="AutoNumber2">
<tr>
<td width="100%" bgcolor="#EFEFEF" height="20"> <b><%=i%>、<%=rs("question")%></b></td>
</tr>
<%
if rs("A")<>"" then
%>
<tr>
<td width="100%"> <input type="checkbox" name="NO<%=rs("id")%>" value="A">A、<%=rs("A")%></td>
</tr>
<%
end if
if rs("B")<>"" then
%>
<tr>
<td width="100%"> <input type="checkbox" name="NO<%=rs("id")%>" value="B">B、<%=rs("B")%></td>
</tr>
<%
end if
if rs("C")<>"" then
%>
<tr>
<td width="100%"> <input type="checkbox" name="NO<%=rs("id")%>" value="C">C、<%=rs("C")%></td>
</tr>
<%
end if
if rs("D")<>"" then
%>
<tr>
<td width="100%"> <input type="checkbox" name="NO<%=rs("id")%>" value="D">D、<%=rs("D")%></td>
</tr>
<%
end if
%>
</table>
<%
rs.update
next
'rs.close
response.write("<input type='hidden' name='hidQuestID1' value=" & strID1 & ">")
response.write("<input type='hidden' name='hidQuestID2' value=" & strID2 & ">")
set rs=nothing
set rs=server.createobject("adodb.recordset")
sql="select * from question where haveselect=1 "
rs.open sql,conn,3,2
rs.movefirst
do while not rs.eof
rs("haveselect")=0
rs.update
rs.movenext
loop
rs.close
set rs=nothing
call endConnection()
'response.write(strid1)
'response.write(strid2)
%>
<p align=center><input type="submit" value="交卷" name="submit" ></p>
</form>
<%
else
%>
<form method="POST" action="test.asp" name="form">
<p align=center><input type="submit" value="开始考试" id='submit' name="submit1" ></p>
</form>
<%
response.write "<center>请选择开始考试！</center>"
end if
%>
</body>
</html>
[解决办法]
使用记录集之前，你需要先判断
<%
If Not rs.EOF Then
%>
<td width="100%"> <input type="checkbox" name="NO<%=rs("id")%>" value="C">C、<%=rs("C")%></td>
<%
End If
%>
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