如何实现网上考试？
login.asp
' 考生验证.
<％@ Language=VBScript％>
<％
name=trim(request("name"))
passwd=trim(request("passwd"))
if name<>"" and passwd<>"" then
' 检查考生是否输入用户名和密码.
Set conn = Server.CreateObject("ADODB.Connection")
conn.Open "driver={Microsoft Access Driver(＊.mdb)};
dbq="＆ Server.MapPat("exercise.mdb")
set rs= server.createobject("adodb.recordset")
sql= "select ＊ from user where user=
'" ＆name＆"' and passwd='" ＆ passwd ＆"'"
Set rs= conn.Execute(sql)
' 验证考生合法性.
if not(rs.eof) then
if rs("score")<>0 then
' 检查考生是否已参加过考试,若是则进行成绩查询.
response.write rs("user")＆"的考试成绩是"＆rs("score")
else
session("pass")=1
session("user")=name
response.redirect "test.asp"
end if
else
Response.Write "噢,您输入的用户名或密码不正确!"
end if
else
end if
％>
<html>
<head>
<META NAME="GENERATOR" Content="Microsoft Visual Studio 6.0">
<title>撼雪喷云之考生登录</title>
</head>
<body>
<FORM action="login.asp" id=
FORM1 method=post name=FORM1>
<P title="">＆nbsp;</P>
<P title="">＆nbsp;</P>
<P title="" align=center>考生:
<INPUT id=text1 name=name style="HEIGHT:22px; WIDTH: 103px"></P>
<P title="" align=center>密码:
<INPUT id=password1 name=passwd style="HEIGHT: 23px; WIDTH: 101px" type=password></P>
<P title="" align=center>
<INPUT id=submit1 name=submit1 type=submit value="进入 " style="FONT－SIZE: medium; FONT－STYLE: normal; FONT－VARIANT:normal; FONT－WEIGHT: bold" title=""></P>
<P title="" align=center>
</P>
</FORM>
</body></html>
test.asp
' 从题库中取题考试.
<％@ Language=VBScript ％>
<％
if session("pass")<>1 then
response.redirect "login.asp"
else
end if
Set conn = Server.CreateObject("ADODB.Connection")
conn.Open "driver={Microsoft Access Driver (＊.mdb)};
dbq="＆ Server.MapPath("exercise.mdb")
sql="select ＊ from test"
Set rs = conn.Execute( sql )
' 提取试题.
％>
<script LANGUAGE="javascript">
var isn1=null;
var isn2=false;
today=new Date();
function stopit(){
if(isn2){
clearTimeout(isn1);
}
isn2 = false;
}
function startit(){
stopit();
isnclock();
}
function isnclock(){
var now=new Date();
var hrs=now.getHours();
var min=now.getMinutes();
var sec=now.getSeconds();
document.clckh.disp.value=""＋((hrs>12) ? hrs－12 : hrs);
document.clckm.disp.value=((min<10) ? "0" : "")＋min;
document.clcks.disp.value=((sec<10) ? "0" : "")＋sec;
document.clck.disp.value=(hrs>=12) ? "p.m." : "a.m.";
isn1=setTimeout("isnclock()",1000);
isn2=true;
}
</script>
' 以上是一个计时函数.
<html>
<head>
<META NAME="GENERATOR" Content="Microsoft Visual Studio 6.0">
</head>
<body onLoad="startit()" BGCOLOR="FFFFFF">
<center>
' 调用计时函数显示时间.
<TABLE BORDER=2>
<tr>
<td>Time</td><td>Hour</td><td>Min</td><td>Sec</td><td></td>
</tr>
<tr>
<td></td>
<td VALIGN=TOP><FORM NAME="clckh" onSubmit="0">
<INPUT TYPE="text" NAME="disp" SIZE=2 VALUE ="">
</FORM></td>
<td VALIGN=TOP><FORM NAME="clckm" onSubmit="0">
<INPUT TYPE="text" NAME="disp" SIZE=2 VALUE ="">
</FORM></td>
<td VALIGN=TOP><FORM NAME="clcks" onSubmit="0">
<INPUT TYPE="text" NAME="disp" SIZE=2 VALUE ="">
</FORM></td>
<td VALIGN=TOP><FORM NAME="clck" onSubmit="0">
<INPUT TYPE="text" NAME="disp" SIZE=4 VALUE ="">
</FORM></td></tr>
</center>
<FORM action="result.asp" id=FORM1 method=post name=FORM1>
' 显示试题.
<P>＆nbsp;</P>
<P>
<％
i=1
rs.movefirst
do while not rs.eof％>
<P>＆nbsp;＆nbsp; <％=rs("question")％></P>
<TABLE align=center border=1 cellPadding=1
cellSpacing=1 width="80％">
<tr>
<td style="WIDTH: 50％" width="50％">
<INPUT name=ans<％=i％> type=radio value="A"><％=rs("a")％></td>
<td><INPUT name=ans<％=i％ ＞
type=radio value="B"><％=rs("b")％></td></tr>
<tr>
<td><INPUT name=ans<％=i％>
type=radio value="C"><％=rs("c")％></td>
<td><INPUT name=ans<％=i％>
type=radio value="D"><％=rs("d")％></td>
</tr>
</TABLE>
<％
i=i＋1
rs.movenext
loop
％>
</P>
<P></P>
<P align=center><INPUT id=submit1 name=submit1 type=submit value=交卷>
<INPUT id=reset1 name=reset1 type=reset value=Reset></P></FORM>
</body></html>
result.asp
' 评分并将成绩记录到数据库.
<％@ Language=VBScript ％>
<html>
<head>
<META NAME="GENERATOR" Content="Microsoft Visual Studio 6.0">
</head>
<body>
<P>＆nbsp;</P>
<％
name=session("user")
dim score
Set conn = Server.CreateObject("ADODB.Connection")
conn.Open "driver={Microsoft Access Driver(＊.mdb)};
dbq=" ＆ Server.MapPath("exercise.mdb")
sql="select ans from test"
Set rs = conn.Execute( sql )
ycorrect=0
rsCount=0
Response.Write "标准答案:"
' 给出标准答案并评分.
Do while not rs.eof
Response.Write rs("ans")
rsCount=rsCount＋1
if Request.Form(rsCount)=rs("ans") then
ycorrect=ycorrect＋1
end if
rs.movenext
loop
Response.Write "<br>您的答案:"
score=int(ycorrect/rscount＊100)
for i=1 to Request.Form.Count－1
Response.Write Request.Form(i)
next
Response.Write "<br>"
Response.Write "您的成绩:"＆score
if score<60 then Response.Write "别难过,您不及格!"＆"<br>"
else if score>=60 Response.Write "幸好,您及格了!"＆"<br>"
else Response.Write "恭喜,您获得了优秀!"
strSql="insert into user (result) values ("＆score＆")
where user='"＆name＆"'"
conn.execute(strSql)
' 将成绩存到数据库.
％>
</body></html>
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login.asp' 考生验证.<％@ Language=VBScript％><％name=trim(request("name"))passwd=trim(request("passwd"))if name<>"" and passwd<>"" then' 检查考生是否输入用户名和密码.Set conn = Server.CreateObject("ADODB.Connection")conn.Open "driver={Microsoft Acces...
