例子（请多多指教）

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-- 技术教程 (http://www.webasp.net/article/)
--- 例子（请多多指教） (http://www.webasp.net/article/8/7758.htm)
-- 作者：未知
-- 发布日期： 2003-09-13
#!/usr/bin/perl -w
让用户输入用户名和密码

use strict;
use CGI;

#检查用户名和密码开始
my $mycgi=new CGI;

print <<HEADPART;
content-type:text/html

<html><head><title>test it :)</title>
<meta http-equiv='Content-Type' content='text/html; charset=gb2312'>
<SCRIPT language="JavaScript">
<!--
var never = new Date()
never.setTime(never.getTime() + 2000*24*60*60*1000);

function SetCookie(name, value)
{
    var expString = "; expires=" + never.toGMTString();
    document.cookie = name + "=" + escape(value) + expString;
}

// returns value of cookie or null if cookie does not exist
function GetCookie(name)
{
    var result = null;
    var myCookie = " " + document.cookie + ";";
    var searchName = " " + name + "=";
    var startOfCookie = myCookie.indexOf(searchName);
    var endOfCookie;
    if (startOfCookie != -1)
    {
        startOfCookie += searchName.length; // skip past name of cookie
        endOfCookie = myCookie.indexOf(";", startOfCookie);
        result = unescape(myCookie.substring(startOfCookie, endOfCookie));
    }
    return result;
}
function gogo()
{
    SetCookie('username',document.form1.username.value);
    SetCookie('password',document.form1.password.value);
    document.form1.submit();
}
// -->
</SCRIPT>
</head>

<body bgcolor="#FFFFFF">

<form name=form1 method=post action='/***/other.pl' enctype='multipart/form-data'>
  <p>用户名:
    
<script language=javascript>
<!--
    var username=GetCookie("username");
    if (username==null)
    {
        document.write ('<input type=text name=username class=p1>');
    }
    if (username !== null)
    {
        document.write ("<input type=text name=username value="+username+" class=p1>");
    }
    document.write ("<br>密　码: ");
    var password=GetCookie("password");
    if (password==null)
    {
        document.write ('<input type=password name=password class=p1>');
    }
    if (password !== null)
    {
        document.write ("<input type=password name=password value="+password+" class=p1>");
    }
// -->
</script>

    <br><br>
    <input type=hidden name=pageid value="$pageid">
  </p>
HEADPART

print <<THEEND;
<input type="button" name="Submit" value="进 入" onclick="gogo();"><br>
</form>
* 现已加入cookie，只需要第一次输入用户名和密码，以后系统即可自动记录，不用再输了
</body>
</html>
THEEND
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