我想知道CSDN論壇中左邊的菜單是怎麼做的，最好有源代碼

jxhj 2004-01-26 03:42:26

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minghui000 2004-01-30

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学习

xeimm 2004-01-30

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学习

dragonsdg3 2004-01-30

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mark
study

hope1983 2004-01-27

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to:jxhj
csdn的左边菜单不也是刷新后就恢复原样了吗？如果要用COOKIE保持刷新前的菜单哪不是很麻烦？

liyujie2000 2004-01-27

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good!

minghui000 2004-01-27

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assiss 2004-01-27

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想要刷新后保持,
那最好就是用COOKIE或者SESSION,
不然无状态的HTTP没办法满足你的要求

jxhj 2004-01-26

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To:feel8(准备早起的鸟):我改过了dtree,可以显示第一层,当要打开下一层时却显示"_io为null或不是对象",在416行,可是查看源代码中却没有这一行,请帮忙,分好说....

<html>

<head>
<title></title>

<link rel="StyleSheet" href="dtree.css" type="text/css" />
<link rel="StyleSheet" href="cssmb.css" type="text/css" />
<script type="text/javascript" src="dtree.js"></script>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8"></head>

<body>

<div class="dtree">

<p><a href="javascript: d.openAll();">open all</a> | <a href="javascript: d.closeAll();">close all</a></p>

<?
echo "Part Number Admin";

$cm="select * from part_class order by id";
$result_class=mysql_db_query($db_name,$cm);

echo "<script type='text/javascript'>";

while($rs_class=mysql_fetch_object($result_class)){

echo "d = new dTree('d');";
echo "d.add(0,-1,'$rs_class->name');";

$cm="select * from part_db where class_id='$rs_class->id' order by part_no";
$result=mysql_db_query($db_name,$cm);
while($rs=mysql_fetch_object($result)){
echo "d.add($rs->id,$rs->prev_id,'$rs->part_no($rs->part_mess)','admin.php?id=$rs->id','','main');";
}
echo "document.write(d);";

}
echo "</script>";
?>
</div>

</body>

</html>

shg918 2004-01-26

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mark

jxhj 2004-01-26

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To:hope1983(亢龙有悔浪子回头):有一个问题,每次刷新后都会全部关闭,有没什么办法保持原样?

To:feel8(准备早起的鸟):收到了,可这个是一次全部从表中读出数据,对于20000个节点会太慢的.

我这也有一个,刷新后也是会全部关闭,有没办法?
<?php include("config.php"); ?>

<html>
<head>
<link rel="StyleSheet" href="cssmb.css" type="text/css" />
<script language="JavaScript">
function ShowMenu(MenuID){
if(MenuID.style.display=="none"){
MenuID.style.display="";
}else{
MenuID.style.display="none";
}
}
</script>
<style type="text/css">

</style>
</head>
<body>
<?php
echo "<a href=admin.php target=main>Part Number Admin</a>";

$Con=mysql_connect($db_host,$db_user,$db_pwd);
mysql_select_db($db_name);

$sql="select * from part_class order by id";
$result_class=mysql_query($sql,$Con);

while($rs=mysql_fetch_array($result_class)){

$GLOBALS["ID"] =1;
$layer=1;

$Con=mysql_connect($db_host,$db_user,$db_pwd);
mysql_select_db($db_name);

$sql="select * from part_db where class_id='".$rs["id"]."' and prev_id=0";
$result=mysql_query($sql,$Con);

echo "<br>".$rs["name"];
if(mysql_num_rows($result)>0){
ShowTreeMenu($Con,$result,$layer,$ID);
}
}

function ShowTreeMenu($Con,$result,$layer){
$numrows=mysql_num_rows($result);

echo "<table cellpadding='0' cellspacing='0' border='0'>";

for($rows=0;$rows<$numrows;$rows++){
$menu=mysql_fetch_array($result);

$sql="select * from part_db where prev_id=$menu[id]";
$result_sub=mysql_query($sql,$Con);

echo "<tr>";
if(mysql_num_rows($result_sub)>0){
echo "<td width='20' class='Menu' onClick='javascript:ShowMenu(Menu".$GLOBALS["ID"].");'><img src='img/folder.gif' border='0'></td>";
echo "<td><a href='admin.php?id=$menu[id]' target='main'>$menu[part_no][$menu[part_mess]]</a>";
}else{
echo "<td width='20'><img src='img/page.gif' border='0'></td>";
echo "<td>$menu[part_no][$menu[part_mess]]";
}
/* if($menu[layer_id]>=3){
echo "<a href='admin.php?id=$menu[id]' traget='main'>$menu[part_no][$menu[part_mess]]</a>";
}else{
echo $menu[part_no]."[".$menu[part_mess]."]";
}*/
echo "</td></tr>";

if(mysql_num_rows($result_sub)>0){
echo "<tr id=Menu".$GLOBALS["ID"]++." style='display:none'>";
echo "<td width='20'> </td>";
echo "<td>";
$layer++;
ShowTreeMenu($Con,$result_sub,$layer);
$layer--;
echo "</td></tr>";
}
}
echo "</table>";
}
?>
</body>
</html>

feel8 2004-01-26

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