huansuan.asp

网上购物系统:一个经过完善设计的经典网上购物系统

<!--#include file="../conn/conn.asp"-->
<!--#include file="../conn/webconfig.asp"-->
<%
if request.Cookies("shopxp")("username")="" then
response.Redirect "user.asp"
response.End
end if

set shopxp=server.CreateObject("adodb.recordset")
shopxp.open "select * from [Dv_User] where username='"&request.Cookies("shopxp")("username")&"' ",conn,1,3
jf=shopxp("jifen")
yc=shopxp("yucun")
action=request("act")

if action="jifen" then
jifen=trim(request("jifen"))
if not isInteger(jifen) then
response.write"<script>alert(""非法换算!"");history.go(-1);</script>"
else

if jf-jifen<0 then 
response.write"<script>alert(""你们没有这么多积分可以换算!"");history.go(-1);</script>"
else

shopxp("jifen")=jf-jifen
shopxp("yucun")=yc+(jifen/2)
shopxp.update
response.redirect "user.asp"
end if
end if
end if

if action="cunkuan" then
cunkuan=trim(request("cunkuan"))
if not isInteger(cunkuan) then
response.write"<script language=javascript>alert(""非法换算!"");history.go(-1);</script>"
else

if yc-cunkuan<0 then 
response.write"<script language=javascript>alert(""你们没有这么多预存款可以换算!"");history.go(-1);</script>"
else

shopxp("jifen")=jf+(cunkuan*2)
shopxp("yucun")=yc-cunkuan
shopxp.update
response.redirect "user.asp"
end if
end if
end if
%>