if条件有点看不懂,

if instr(request("comeurl"),"register.asp")>0 or instr(request("comeurl"),"login.asp")>0 or instr(request("comeurl"),"chklogin.asp")>0 or trim(request("comeurl"))="" or instr(request("comeurl"),"index.asp")>0 then
response.redirect "myclass.asp"
else
response.redirect request("comeurl")
end if