使用Cookie或Session来处理。以下以Cookie为例:
add.asp
<%response.cookies("SubmitFlag")="no"%>
save.asp
<%
if request.cookies("SubmitFlag")="yes" then
response.write "您不能重复提交数据!"
response.end
end if
rs.AddNew
……
rs.update
rs.close
response.cookies("SubmitFlag")="yes"
%>