ASP判断条件奇怪

判断非符合条件下警告,

if id <> rs(0) then
response.write "<script language='javascript'>" & chr(13)
response.write "alert('ID非法操作！');" & Chr(13)
response.write "window.document.location.href='javascript:history.go(-1)';"&Chr(13)
response.write "</script>" & Chr(13)
Response.End
end if

问题是:当前我的条件是符合的,却弹出警告!

我把它改成:

if id = rs(0) then
response.write "<script language='javascript'>" & chr(13)
response.write "alert('ID非法操作！');" & Chr(13)
response.write "window.document.location.href='javascript:history.go(-1)';"&Chr(13)
response.write "</script>" & Chr(13)
Response.End
end if

却正常

你把rs（0）取出转一下int再比一下，可能id是数字类型 rs取出来是字符类型

逻辑问题：id<>rs(0)为真,也就是id为非rs(0)即弹出警告，而id=rs(0)为真，是id是rs(0)即弹出警告