这是vb还是vbscript还是VB.net?
如何能比较快区分这三种语言，还有，这三者有什么共同性与区别？
一张.asp里面的一段，请问根据这一段可以知道登入的用户名和密码吗?
<!--#include file = conn.asp-->
<%
username = request("username")
password = request("password")
set rs = server.CreateObject("adodb.recordset")
sql = "select * from admin where username = '"&username&"' and password = '"&password&"'"
rs.open sql,conn,1,3
if rs.eof then
Response.Write "<script language=javascript>alert('对不起，您的用户名和密码错误！');"
Response.Write "window.document.location.href='index.asp';</script>"
else
session("userid") = rs("ID")
Response.Write "<script language=javascript>alert('恭喜您登陆成功！');"
Response.Write "window.document.location.href='goods.asp';</script>"
end if
%>
这是coon.asp页面里的，上面 <!--#include file = conn.asp-->是指和这张网页链接吗？
<%
connstr = "dbq="&server.mappath("data.mdb")&";driver={microsoft access driver (*.mdb)}"
set conn=server.createobject("adodb.connection")
conn.open connstr
%>
这是网站上另外一个修改密码的界面 从里面可以找出原来的密码吗？
<%If session("userid")="" Then Response.Redirect "index.asp"%>
<!--#include file="conn.asp"-->
<%
dim sql
pwd = trim(request("pwd"))
password = request("password")
password2 = request("password2")
fID = session("userid")
sql = "select * from admin where ID = " & fID
set rs = server.CreateObject("ADODB.REcordSet")
set rs = conn.execute(sql)
if pwd <> Trim(rs("password")) then
Response.Write "<script language=javascript>alert('您输入的原来密码不正确！');"
Response.Write "window.document.location.href='pwdck.asp';</script>"
end if
sql = "update admin set password = "
if Trim(password)<>"" then
sql = sql & "'" & password & "'"
else
sql = sql & "null"
end if
sql = sql & " where ID = " & fID
conn.execute(sql)
Response.Write "<script language=javascript>alert('密码修改成功！');"
Response.Write "window.document.location.href='goods.asp';</script>"
%>
下面一行用“”引起来是什么意思？大概想要达到的目的是什么？
sql = "select * from admin where ID = " & fID
------解决方案--------------------
VBScript是VB的子集，是一种脚本语言。
VB.NET是VB的后续版本，比VB功能更加强大，开发效率更高。