asp+access实现的无限级分类

思路是使用递归循环显示数据库中的内容
代码:
< %
'*****************************************
' 功能：树形显示无限级分类
' 开发：asp编程网
' 网址：www.aspprogram.cn
' 作者：wangsdong
' 注：原创文章，转载请保留此信息，谢谢
'*****************************************
depath=0
function fl(parent_id)  
set rs1 =server.createobject("adodb.recordset")
sql="select title,id from cat where parent_id="&parent_id&" order by sort_order asc"
set rs1=conn.execute(sql)
If rs1.eof Then
Else
do while not rs1.eof
 title = rs1("title")
 id = rs1("id")
 for i=1 to depath
   response.write "&nbsp;"
 next
 response.write title
 response.write "<br>"
 sql2="select title,id from cat where parent_id="&parent_id&" order by sort_order asc"
 set rs2=server.createobject("adodb.recordset")
 set rs2=conn.execute(sql2)
 if not rs2.eof then
    depath=depath+3
    call fl(id)
 end if
 rs2.close 
 set rs2=nothing 
 depath=depath-3     
rs1.movenext
loop
End If
rs1.close
set rs1=nothing
end function
call fl(0)
% >

代码下载地址:http://www.aspprogram.cn/soft.asp?id=60