用排序串字段实现树状结构（例程——显示树）


答案：程序index.asp
功能：显示目录树

<!-- #include file="lybcon.inc" --><%
pageno=request("pageno")
searchtype=request("searchtype")
searchnr=rtrim(request("searchnr"))
set guestconn=Server.CreateObject("ADODB.connection")
guestconn.Open lybstr
set guestrs=server.createobject("ADODB.recordset")
sqlstr="SELECT * FROM guestbook"
if searchnr<>"" then sqlstr=sqlstr&" where "&searchtype&" like '%%"&replace(searchnr,"'","''")&"%%'"
sqlstr=sqlstr&" order by rootid+(1-sign(rootid))*lybid desc,orderstr,lybid desc"
guestrs.open sqlstr,guestconn,1,1
rowcount=25
if pageno="" then pageno=1
if not guestrs.eof then
  if IsNumeric(pageno) then
    guestrs.pagesize=rowcount
    if pageno+1>guestrs.pagecount+1 then pageno=guestrs.pagecount
  else
    pageno=1
  end if
  guestrs.AbsolutePage=pageno
else
  pageno=1
end if
%><html>
<head><title>软件使用留言薄</title>
<style TYPE="text/css">
<!--
a {  text-decoration: none}
body {line-height:18px;font-size:9pt;font-family:宋体}
a:hover {color:#FF0000;text-decoration:none}
.submit {line-height:9pt;font-size:9pt;font-family:宋体}
.submit1 {line-height:8pt;font-size:8pt;font-family:宋体}
.selectform {font-family: 宋体; font-size: 9pt;background-color:ffE4E4}
td {font-family: 宋体; font-size: 9pt;background-color:ECF7FF}
.td1 {font-family: 宋体; font-size: 9pt;background-color:A2C8F2}
.td2 {font-family: 宋体; font-size: 9pt;background-color:E9EDE0}
.small1 {font-family: 宋体; font-size: 9pt;background-color:ffffff;line-height:9pt}
-->
</style>
<script language="javascript1.2">
function d(sp,t,a,d,ti,l,id,rid,pn)
{
 document.write("<tr><td>"+sp+"<a href=> document.write("<td align=right>"+a+" </td>");
 document.write("<td nowrap align=center>"+d+" "+ti+"</td>");
 document.write("<td align=right>"+l+" </td>");
 document.write("<td align=right>"+id+" </td>");
 document.write("</tr>");
}
</script>
</head>
<body topmargin=16>
<form name='index' method='POST' action='index.asp'>
<table width=100% align=center>
  <tr>
   <td align=center style='font-size:16px;background-color:ffffff;color:red' height=35 valign=top>软件使用留言薄</td>
   <td align=center colspan=3 style='font-size:13px;background-color:ffffff' valign='bottom'>共<font style='font-size:16px;color:red'><% =guestrs.recordcount %></font>条留言<font style='font-size:16px;color:red'><% =guestrs.pagecount %></font>页目前第<font style='font-size:16px;color:red'><% =pageno %></font>页</td>
   <td style='background-color:ffffff' valign=bottom><a href=>  <tr>
   <td class='td2' align='center'>搜索贴子
    <select name='searchtype' class='small1'>
     <option value='guestname' <% if searchtype="guestname" then response.write("selected") %>>贴子作者</opion>
     <option value='guestcomm' <% if searchtype="guestcomm" then response.write("selected") %>>贴子内容</opion>
    </select> <input type='text' name='searchnr' size=14 class='small1' value='<% =searchnr %>'> <a href=>   </td>
   <td colspan=3 class='td2' align='center'><% if pageno+1>2 then %><a href=>   <td class='td2' align=center><a href=>  </tr>
  <tr style="color:red">
   <td align=center class='td1'>留言标题</td>
   <td align=center width=70 class='td1'><img src='http://old.zzzyk.com/article/Article/edit.gif'>作  者</td>
   <td align=center width=100 class='td1'>发表时间</td>
   <td align=center width=60 class='td1' nowrap>贴子字数</td>
   <td align=center width=60 class='td1' nowrap>贴子序号</td>
  </tr>
<%
do while true
  if guestrs.eof then exit do
  if guestrs("rootid")=0 then exit do
  guestrs.movenext
loop
do while not guestrs.eof and rowcount>0 %><script>d('<% =replace(space(2*len(guestrs("orderstr")))," "," ") %>','<% =guestrs("guestitle") %>','<% =guestrs("guestname") %>','<% =guestrs("putdate") %>','<% =guestrs("puttime") %>',<% =len(guestrs("guestcomm")) %>,<% =guestrs("lybid") %>,<% =guestrs("rootid") %>,<% =pageno %>)</script>
<%
rowcount=rowcount-1
guestrs.movenext
if not guestrs.eof then
  if guestrs("rootid")<>0 and rowcount=0 then rowcount=1
end if
loop
guestrs.close
set guestrs=nothing
guestconn.close
set guestconn=nothing
%>
</table>
</form>
<br><br><br>
</body>
</html>

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