ASP下的两个防止SQL注入式攻击的Function

'==========================
'过滤提交表单中的SQL
'==========================
function ForSqlForm()
dim fqys,errc,i,items
dim nothis(18)
nothis(0)="net user"
nothis(1)="xp_cmdshell"
nothis(2)="/add"
nothis(3)="exec%20master.dbo.xp_cmdshell"
nothis(4)="net localgroup administrators"
nothis(5)="select"
nothis(6)="count"
nothis(7)="asc"
nothis(8)="char"
nothis(9)="mid"
nothis(10)="'"
nothis(11)=":"
nothis(12)=""""
nothis(13)="insert"
nothis(14)="delete"
nothis(15)="drop"
nothis(16)="truncate"
nothis(17)="from"
nothis(18)="%"
'nothis(19)="@" 
errc=false
for i= 0 to ubound(nothis)
  for each items in request.Form
  if instr(request.Form(items),nothis(i))>0 then
   response.write("div>")
   response.write("你所填写的信息:"  server.HTMLEncode(request.Form(items))  "br>含非法字符:"  nothis(i))
   response.write("/div>")
   response.write("对不起,你所填写的信息含非法字符！a href=""#"" onclick=""history.back()"">返回/a>")
   response.End()
  end if
  next
next
end function
'==========================
'过滤查询中的SQL
'==========================
function ForSqlInjection()
dim fqys,errc,i
dim nothis(19)
fqys = request.ServerVariables("QUERY_STRING")
nothis(0)="net user"
nothis(1)="xp_cmdshell"
nothis(2)="/add"
nothis(3)="exec%20master.dbo.xp_cmdshell"
nothis(4)="net localgroup administrators"
nothis(5)="select"
nothis(6)="count"
nothis(7)="asc"
nothis(8)="char"
nothis(9)="mid"
nothis(10)="'"
nothis(11)=":"
nothis(12)=""""
nothis(13)="insert"
nothis(14)="delete"
nothis(15)="drop"
nothis(16)="truncate"
nothis(17)="from"
nothis(18)="%"
nothis(19)="@" 
errc=false
for i= 0 to ubound(nothis)
if instr(FQYs,nothis(i))>0 then
errc=true
end if
next
if errc then
response.write "查询信息含非法字符！a href=""#"" onclick=""history.back()"">返回/a>"
response.end
end if
end function