求CSDN论坛左边的那棵树的源代码！

JKTree (folder/file/checkbox)
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
<title>JK:支持民族工业,尽量少买X货</title>
<style re="[email protected]">
.treeItemJK {}
.treeTitleJK {}
.rootJK  {}
.commonClosedFolderJK {cursor:hand;}
.commonOpenFolderJK {cursor:hand;}
.lastClosedFolderJK {cursor:hand;}
.lastOpenFolderJK {cursor:hand;}
</style><script language=javascript>
/*
//var rootJKHtml ='<img src="root.gif"/>';
var commonClosedFolderJKHtml ='<img src="commonClosedFolder.gif" onclick="clickFolderImgFun(this);" class="commonClosedFolderJK"  align="absMiddle" />';
var commonOpenFolderJKHtml ='<img src="commonOpenFolder.gif" onclick="clickFolderImgFun(this);" class="commonOpenFolderJK"  align="absMiddle" />';
var lastClosedFolderJKHtml ='<img src="lastClosedFolder.gif" onclick="clickFolderImgFun(this);" class="lastClosedFolderJK"  align="absMiddle" />';
var lastOpenFolderJKHtml ='<img src="lastOpenFolder.gif" onclick="clickFolderImgFun(this);" class="lastOpenFolderJK"  align="absMiddle" />';
var commonFileJKHtml ='<img src="commonFile.gif"  align="absMiddle" />';
var lastFileJKHtml ='<img src="lastFile.gif"  align="absMiddle" />';
var fileJKHtml ='<img src="file.gif" />';
var folderJKHtml ='<img src="folder.gif" />';
var threadJKHtml ='<img src="thread1.gif" align="absMiddle" />';
var blankJKHtml ='<img src="blank.gif" align="absMiddle" />';
*/
//var rootJKHtml ='<img src="http://community.csdn.net/Tree/TreeImages/root.gif"/>';
var commonClosedFolderJKHtml ='<img src="http://community.csdn.net/Tree/TreeImages/P1.gif" onclick="clickFolderImgFun(this);" class="commonClosedFolderJK" align="absMiddle" />';
var commonOpenFolderJKHtml ='<img src="http://community.csdn.net/Tree/TreeImages/M1.gif" onclick="clickFolderImgFun(this);" class="commonOpenFolderJK" align="absMiddle" />';
var lastClosedFolderJKHtml ='<img src="http://community.csdn.net/Tree/TreeImages/P2.gif" onclick="clickFolderImgFun(this);" class="lastClosedFolderJK" align="absMiddle" />';
var lastOpenFolderJKHtml ='<img src="http://community.csdn.net/Tree/TreeImages/M2.gif" onclick="clickFolderImgFun(this);" class="lastOpenFolderJK" align="absMiddle" />';
var commonFileJKHtml ='<img src="http://community.csdn.net/Tree/TreeImages/L1.gif" align="absMiddle" />';
var lastFileJKHtml ='<img src="http://community.csdn.net/Tree/TreeImages/L2.gif" align="absMiddle" />';
var fileJKHtml ='<img src="http://community.csdn.net/Tree/TreeImages/file.gif" />';
var folderJKHtml ='<img src="http://community.csdn.net/Tree/TreeImages/folder.gif" />';
var threadJKHtml ='<img src="http://community.csdn.net/Tree/TreeImages/L4.gif" align="absMiddle" />';
var blankJKHtml ='<img src="http://community.csdn.net/Tree/TreeImages/L5.gif" align="absMiddle" />';var currentTreeItem=null;
function mouseOverInTree(){
   if(event.srcElement.className=="treeItemJK") currentTreeItem=event.srcElement;
   else if (event.srcElement.parentElement.className=="treeItemJK") currentTreeItem=event.srcElement.parentElement;
   if(currentTreeItem!=null) currentTreeItem.style.setAttribute("backgroundColor","#D4D0C8");
}
function mouseOutInTree(){
  if(currentTreeItem==null) return;
  currentTreeItem.style.backgroundColor="";
  currentTreeItem=null;
}
function clickFolderImgFun(folderImgObj)
{
  var itemObj=folderImgObj.parentElement;
  var itemId=itemObj.id.replace(/treeItem_/ig,"");
  var treeTreeObj=document.getElementById("tree_tree_"+itemId);
  if(folderImgObj.className=="commonOpenFolderJK"){
    folderImgObj.outerHTML=commonClosedFolderJKHtml;
    treeTreeObj.style.display="none";;
  }
  else  if(folderImgObj.className=="lastOpenFolderJK"){
    folderImgObj.outerHTML=lastClosedFolderJKHtml;
    treeTreeObj.style.display="none";
  }
  else   if(folderImgObj.className=="commonClosedFolderJK"){
    folderImgObj.outerHTML=commonOpenFolderJKHtml;
    treeTreeObj.style.display="";
    if(treeTreeObj.innerHTML.length<20) treeTreeObj.innerHTML=getSubItemsHtml(itemObj);
  }
  else   if(folderImgObj.className=="lastClosedFolderJK"){
    folderImgObj.outerHTML=lastOpenFolderJKHtml;
    treeTreeObj.style.display="";
    if(treeTreeObj.innerHTML.length<20) treeTreeObj.innerHTML=getSubItemsHtml(itemObj);
  }
  else if (folderImgObj.className=="rootJK"){
    if(treeTreeObj.innerHTML.length<20) treeTreeObj.innerHTML=getSubItemsHtml(itemObj);
  }
}
function getSubItemsHtml(itemObj)//得到sub的HTML字符串
{
  var items= getSubItems(itemObj);
  var itemsHtml=new Array(items.length);
  var itemId=itemObj.id.replace(/treeItem_/ig,"");
  for(var i=0;i<items.length-1;i++){
    if("Folder"==items[i][0])   itemsHtml[i]='<DIV class=treeItemJK id="treeItem_'+items[i][1]+'" >'+getItemTreeImgsHtml(itemObj)+commonClosedFolderJKHtml+getItemHtml(itemObj,items[i]);
    else itemsHtml[i]='<DIV class=treeItemJK id="treeItem_'+items[i][1]+'" >'+getItemTreeImgsHtml(itemObj)+commonFileJKHtml+getItemHtml(itemObj,items[i]);
  }
  var lastItem=items[items.length-1];
  {
    if("Folder"==lastItem[0])   itemsHtml[items.length-1]='<DIV class=treeItemJK id="treeItem_'+items[i][1]+'" >'+getItemTreeImgsHtml(itemObj)+lastClosedFolderJKHtml+getItemHtml(itemObj,lastItem)+'</span>';
    else itemsHtml[items.length-1]='<DIV class=treeItemJK id="treeItem_'+items[i][1]+'" >'+getItemTreeImgsHtml(itemObj)+lastFileJKHtml+getItemHtml(itemObj,lastItem)+'</span>';
  }
  return "\n"+itemsHtml.join("\n");
}
function getItemTreeImgsHtml(itemObj)
{
  var itemObjElements=itemObj.children;
  var imgsHtml="";
  for(var i=0;i<itemObjElements.length;i++){
    if(itemObjElements[i].className=="rootJK") return "";
    if(itemObjElements[i].className=="lastOpenFolderJK"||itemObjElements[i].className=="lastClosedFolderJK" ){
      imgsHtml+=blankJKHtml;
      break;
    }
    else if (itemObjElements[i].className=="commonOpenFolderJK"||itemObjElements[i].className=="commonClosedFolderJK"){
      imgsHtml+=threadJKHtml;
      break;
    }
else {
   imgsHtml+=itemObjElements[i].outerHTML;
}
  }
  return imgsHtml;
}
function getSubItems(parentItemObj) //此函数仅作示例,修改（或重载）此函数来自定义tree的节点数据类型。
{
  var parentItemId=parentItemObj.id.replace(/treeItem_/ig,"");
  var items=new Array();
  items[items.length]=new Array("Folder",parentItemId+"01");
  items[items.length]=new Array("Folder",parentItemId+"02");
  items[items.length]=new Array("File",parentItemId+"03");
  items[items.length]=new Array("File",parentItemId+"04");
  items[items.length]=new Array("Checkbox",parentItemId+"05");
  items[items.length]=new Array("Checkbox",parentItemId+"06");
  return items;
}这个是在独钓寒江雪blog上得到的
function getItemHtml(parentItemObj,item)//此函数仅作示例,修改（或重载）此函数来自定义tree的节点HTML。
{
  var htmlStr="";
  if("Folder"==item[0]) htmlStr=folderJKHtml+'<A class=treeTitleJK href="#" target="aaaa">目录'+item[1]+'</A></DIV><span id="tree_tree_'+item[1]+'"></span>';
  else if("File"==item[0]) htmlStr=fileJKHtml+'<A class=treeTitleJK href="#" target="aaaa">文件'+item[1]+'</A></DIV>';
  else if("Checkbox"==item[0]) htmlStr='<input type=checkbox name=abcdefg value="'+item[1]+'">'+'<A class=treeTitleJK href="#" target="aaaa">文件'+item[1]+'</A></DIV>';
  return htmlStr;
}
function showTreeItem(itemId)//此函数用来展开树，以显示所指定的treeItem
{
var itemObj=document.getElementById("treeItem_"+itemId);
if(itemObj==null) {
   alert("该Item还没生成");
   return;
}
while(itemObj!=null && (/treeItem/ig).test(itemObj.id))
{
   var itemFolderImg=getTreeItemFolderImg(itemObj);
   if(itemFolderImg!=null && ("commonClosedFolderJK"==itemFolderImg.className || "lastClosedFolderJK"==itemFolderImg.className))
     itemFolderImg.fireEvent("onclick");
   itemObj=document.getElementById(itemObj.parentElement.id.replace(/tree_tree/ig,"treeItem"));
}
if(true)//实现scrollIntoView（obj.scrollIntoWiew不够体贴）
{
   itemObj=document.getElementById("treeItem_"+itemId);
   var tempInput=document.createElement("input");
   itemObj.appendChild(tempInput);
   tempInput.focus();
   tempInput.removeNode(true);
}
}
function showMultipleTreeItems(itemIds)//此函数用来展开树，以显示所指定的一系列Item.
{
for(var i=0;i<itemIds.length;i++){
      var itemObj=document.getElementById("treeItem_"+itemIds[i]);
      if(itemObj==null){
     alert("该Item还没生成");
     return;
      }
      var itemFolderImg=getTreeItemFolderImg(itemObj);
   if(itemFolderImg!=null && ("commonClosedFolderJK"==itemFolderImg.className || "lastClosedFolderJK"==itemFolderImg.className))
     itemFolderImg.fireEvent("onclick");
}
if(itemIds.length>0)//实现scrollIntoView（obj.scrollIntoWiew不够体贴）
{
   var itemObj=document.getElementById("treeItem_"+itemIds[itemIds.length-1]);
   var tempInput=document.createElement("input");
   itemObj.appendChild(tempInput);
   tempInput.focus();
   tempInput.removeNode(true);
}
}function getTreeItemFolderImg(itemObj){
var objs=itemObj.children;
for(var i=0;i<objs.length;i++){
   var tempClassName=objs[i].className;
   if("commonClosedFolderJK"==tempClassName || "commonOpenFolderJK"==tempClassName || "lastClosedFolderJK"==tempClassName || "lastOpenFolderJK"==tempClassName )
     return objs[i];
}
return null;
}
</script>
</head>
<body >
<div>
注1：部分代码及所有图片来自csdn tree(csdn-tree的作者为Meizz) <br/><br/>
注2：使用时请将图片改成本公司图片，以免涉嫌侵权<br/><br/>
注3：function getSubItems(parentItemObj) //此函数仅作示例,修改（或重载）此函数来自定义tree的节点数据类型及数据来源。<br/><br/>
注4：function getItemHtml(parentItemObj,item)//此函数仅作示例,修改（或重载）此函数来自定义tree的节点HTML。<br/><br/>
注5：前三个函数可用于参照“本tree的html”来生成的tree状html页面<br/><br/>
注6：AJAX层开层生成树，参见注3<font color=#FFFFFF>（外行话，说给外行听）</font><br/><br/>
注7：Javascript层开层生成树，参见注3<br/><br/>
注8：function showTreeItem(itemId)用来打开某节点：请双击<input width=50 value="0101" ondblclick="showTreeItem(this.value);"> <br/><br/>
注9：function showMultipleTreeItems(items)//此函数用来展开树，以显示所指定的一系列Item.：请双击<input width=50 value="02,0202,020205" ondblclick="showMultipleTreeItems(this.value.split(','));"> <br/><br/>
注10：本页面只作代码示例，客户化时请自行封装。<br/><br/>
注11：本页面仅在IE6下测试过。<br/><br/>
注-----：作者JK：[email protected]<br/><br/>
</div>
<DIV id=treeContainerDiv onmouseover="mouseOverInTree();" onmouseout="mouseOutInTree();" >
<nobr>
<DIV class=treeItemJK id="treeItem_"><img src="http://community.csdn.net/Tree/TreeImages/root.gif" onclick="clickFolderImgFun(this);" class="rootJK" align="absMiddle" /><A class=treeTitleJK href="#" target="aaaa">根目录</A></DIV><span id="tree_tree_"></span>
</nobr>
</DIV>
<script >
clickFolderImgFun(document.getElementById('treeItem_').children[0]);//这一句是为打开tree_root。如果页面没什么图片的话，也可以放到<body onload='...'>
</script>
</body>
</html>

调试易

求CSDN论坛左边的那棵树的源代码！

解决方案 »