asp 在线记事本程序

<%
 if session("username")="" or session("use_type")<>"超级管理员" then
response.Write("")
response.end
end if
dim path,filename,filetype,fileconten,fso
path=request("path")
filename=html_encode(request("filename"))
filecontent=request("filecontent")
filetype=request("filetype")
if instr(filename,"*")>0 or instr(filename,"?")>0 or instr(filename,"&")>0 or len(filename)<0  or filename="" then
response.Write("")
response.end
else
set fso=server.createobject("scripting.filesystemobject")
if fso.fileexists(path&filename&filetype) then
response.Write("")
response.End()
end if
set input=fso.createtextfile(server.mappath(path&filename&filetype),true)
input.writeline(filecontent)
input.close
if err then
response.Write("")
else
%>
   
   
   <%
'response.redirect("try/mange_page.asp")
end if
end if
%>