<p>　　将下面的脚本包含到你的页面中</p><p>　　另外需要从资源管理器中截取一些gif图片,祥见脚本中的注释</p><p>　　菜单结构文件的格式为:</p><p>　　tree level|item text|item link|link target|last item in subtree</p><p>　　例如</p><code>.<b>Demo menu</b>|javascript: alert('This is the demo menu for TreeMenu 1.0');<br />..<b>目录1</b><br />...<b>子目录 1.1</b><br />....item 1.1.1|javascript: alert('Item 1.1.1');<br />....item 1.1.2|javascript: alert('Item 1.1.1');<br />...item 1.2|javascript: alert('Item 1.2');<br />...item 1.3|javascript: alert('Item 1.3');<br />..<b>子目录 2</b><br />...item 2.1|javascript: alert('Item 2.1');<br />...item 2.2|javascript: alert('Item 2.2');<br />...<b>子目录 2.3</b><br />....item 2.3.1|javascript: alert('Item 2.3.1');<br />....item 2.3.2|javascript: alert('Item 2.3.2');<br /><?php<br />// file:tremenu.inc<br />// PHP TreeMenu<br />/////////////////<br />// 初始化 //<br />/////////////////<br />$treefile = "demomenu.txt";//设置有菜单结构的文件<br />if(isset($PATH_INFO))<br />$script = $PATH_INFO;<br />else<br />$script = $SCRIPT_NAME;<br />//以下图片可截取windows资源管理器中的相应位置的图<br />$img_expand = "tree_expand.gif";//形如资源管理器中可扩展节点+<br />$img_collapse = "tree_collapse.gif";//形如资源管理器中已扩展节点-<br />$img_line = "tree_vertline.gif";//形如|<br />$img_split = "tree_split.gif";//形如|-<br />$img_end = "tree_end.gif";//形如L<br />$img_leaf = "tree_leaf.gif";//形如o<br />$img_spc = "tree_space.gif";//空白图<br />//以下是菜单处理脚本<br />$maxlevel=0;<br />$cnt=0;<br />$fd = fopen($treefile, "r");<br />if ($fd==0) die("treemenu.inc : Unable to open file ".$treefile);<br />while ($buffer = fgets($fd, 4096))<br />{<br />$tree[$cnt][0]=strspn($buffer,".");<br />$tmp=rtrim(substr($buffer,$tree[$cnt][0]));<br />$node=explode("|",$tmp);<br />$tree[$cnt][1]=$node[0];<br />$tree[$cnt][2]=$node[1];<br />$tree[$cnt][3]=$node[2];<br />$tree[$cnt][4]=0;<br />if ($tree[$cnt][0] > $maxlevel) $maxlevel=$tree[$cnt][0];<br />$cnt++;<br />}<br />fclose($fd);<br />for ($i=0; $i<count($tree); $i++)<br />{<br />$expand[$i]=0;<br />$visible[$i]=0;<br />$levels[$i]=0;<br />}<br />if ($p!="")<br />$explevels = explode("|",$p);<br />$i=0;<br />while($i<count($explevels))<br />{<br />$expand[$explevels[$i]]=1;<br />$i++;<br />}<br />$lastlevel=$maxlevel;<br />for ($i=count($tree)-1; $i>=0; $i--)<br />{<br />if ( $tree[$i][0] < $lastlevel )<br />for ($j=$tree[$i][0]+1; $j <= $maxlevel; $j++)<br />$levels[$j]=0;<br />if ( $levels[$tree[$i][0]]==0 )<br />{<br />$levels[$tree[$i][0]]=1;<br />$tree[$i][4]=1;<br />}<br />else<br />$tree[$i][4]=0;<br />$lastlevel=$tree[$i][0];<br />}<br />for ($i=0; $i < count($tree); $i++)<br />if ($tree[$i][0]==1)<br />$visible[$i]=1;<br />for ($i=0; $i < count($explevels); $i++)<br />{<br />$n=$explevels[$i];<br />if ( ($visible[$n]==1) && ($expand[$n]==1) )<br />{<br />$j=$n+1;<br />while ( $tree[$j][0] > $tree[$n][0] )<br />{<br />if ($tree[$j][0]==$tree[$n][0]+1) $visible[$j]=1;<br />$j++;<br />}<br />}<br />}<br />for ($i=0; $i<$maxlevel; $i++)<br />$levels[$i]=1;<br />$maxlevel++;<br />echo "<table cellspacing=0 cellpadding=0 border=0 cols=".($maxlevel+3)."><br />";<br />echo "<tr>";<br />for ($i=0; $i<$maxlevel; $i++)<br />echo "<td width=16></td>";<br />echo "<td width=100%>&nbsp;</td></tr><br />";<br />$cnt=0;<br />while ($cnt<count($tree))<br />{<br />if ($visible[$cnt])<br />{<br />echo "<tr>";<br />$i=0;<br />while ($i<$tree[$cnt][0]-1)<br />{<br />if ($levels[$i]==1)<br />echo "<td><a name='$cnt'></a><img src="".$img_line.""></td>";<br />else<br />echo "<td><a name='$cnt'></a><img src="".$img_spc.""></td>";<br />$i++;<br />}<br />if ($tree[$cnt][4]==1)<br />{<br />echo "<td><img src="".$img_end.""></td>";<br />$levels[$tree[$cnt][0]-1]=0;<br />}<br />else<br />{<br />echo "<td><img src="".$img_split.""></td>";<br />$levels[$tree[$cnt][0]-1]=1;<br />}<br />if ($tree[$cnt+1][0]>$tree[$cnt][0])<br />{<br />$i=0; $params="?p=";<br />while($i<count($expand))<br />{<br />if ( ($expand[$i]==1) && ($cnt!=$i) || ($expand[$i]==0 && $cnt==$i))<br />{<br />$params=$params.$i;<br />$params=$params."|";<br />}<br />$i++;<br />}<br />if ($expand[$cnt]==0)<br />echo "<td><a href="".$script.$params."#$cnt"><img src="".$img_expand."" border=no></a></td>";<br />else<br />echo "<td><a href="".$script.$params."#$cnt"><img src="".$img_collapse."" border=no></a></td>";<br />}<br />else<br />echo "<td><img src="".$img_leaf.""></td>";<br />if ($tree[$cnt][2]=="")<br />echo "<td colspan=".($maxlevel-$tree[$cnt][0]).">".$tree[$cnt][1]."</td>";<br />else<br />echo "<td colspan=".($maxlevel-$tree[$cnt][0])."><a href="".$tree[$cnt][2]."" target="".$tree[$cnt][3]."">".$tree[$cnt][1]."</a></td>";<br />echo "</tr><br />";<br />}<br />$cnt++;<br />}<br />echo "</table><br />";<br />?></code></p>