html5 树形结构 js,用JavaScript实现一个简单的树结构

谁借莪１个温暖的怀抱￠ 2022-10-06 07:57 286阅读 0赞

数据源用数组混json结构，实现了基本的功能。效率一般，跟 dhtree 梅花雪树对比了下，都差不多。 (ps感觉比dhtree快点，跟梅花雪树差不多，个人测试)

这个实现树的原理是根据json，不断的生成ul li， 下面是一个简单的例子(只有涉及到生成树，也就是说只是展示，tree类代码只有64行) 没有用innerHTML生成，全是是创建节点来创建ul li，所以创建节点碎片添加，然后再一次性添加很重要啊，确实能提高速度。

easytree

ul,li\{

list-style: none outside none;

margin: 0;

overflow: hidden;

padding: 0;

\#demo\{

background-color:\#F0FBEB;

\#demo .root\{

margin-left: -20px;

\#demo ul\{

padding-left: 20px;

\#demo .folder\{

background: url("../../images/201202/r\_i.png") repeat-y scroll 0 21px transparent;

\#demo img\{

background: url("../../images/201202/r\_icon.png") no-repeat scroll 0 0 transparent;

border: medium none;

height: 20px;

vertical-align: top;

width: 20px;

\#demo .tvicon-open\{

background-position: -160px -40px;

\#demo .tvdash-f\{

background-position: -240px -40px;

\#demo .tvdash-f-open\{

background-position: -200px -40px;

\#demo .tvdash-fl\{

background-position: -100px -40px;

\#demo .tvdash-fl-open\{

background-position: -80px -40px;

\#demo .tvdash-t\{

background-position: -180px -40px;

\#demo .tvdash-tl\{

background-position: -60px -40px;

(function(doc,undefined)\{

var window = this;

window.Sys = function (ua)\{

var b = \{

ie: /msie/.test(ua) && !/opera/.test(ua),

opera: /opera/.test(ua),

safari: /webkit/.test(ua) && !/chrome/.test(ua),

firefox: /firefox/.test(ua),

chrome: /chrome/.test(ua)

\},vMark = "";

for (var i in b) \{

if (b\[i\]) \{ vMark = "safari" == i ? "version" : i; break; \}

b.version = vMark && RegExp("(?:" + vMark + ")\[\\\\/: \](\[\\\\d.\]+)").test(ua) ? RegExp.$1 : "0";

b.ie6 = b.ie && parseInt(b.version, 10) == 6;

b.ie7 = b.ie && parseInt(b.version, 10) == 7;

b.ie8 = b.ie && parseInt(b.version, 10) == 8;

return b;

\}(window.navigator.userAgent.toLowerCase());

window.Sys.ie6&&doc.execCommand("BackgroundImageCache", false, true);

window.$$ = function(Id)\{

return doc.getElementById(Id);

\};

window.$c = function(name,parent)\{

var elem = doc.createElement(name);

parent&&parent.appendChild(elem);

return elem;

\};

window.addListener = function(element,e,fn)\{

!element.events&&(element.events = \{\});

element.events\[e\]&&(element.events\[e\]\[addListener.guid++\]=fn)||(element.events\[e\] = \{'0':fn\});

element.addEventListener?element.addEventListener(e,fn,false):element.attachEvent("on" + e,fn);

\};

window.addListener.guid = 1;

window.removeListener = function(element,e,fn)\{

var handlers = element.events\[e\],type;

if(fn)\{

for(type in handlers)

if(handlers\[type\]===fn)\{

element.removeEventListener?element.removeEventListener(e,fn,false):element.detachEvent("on" + e,fn);

delete handlers\[type\];

\}else\{

for(type in handlers)\{

element.removeEventListener?element.removeEventListener(e,handlers\[type\],false):element.detachEvent("on" + e,handlers\[type\]);

delete handlers\[type\];

\};

window.setStyle = function(e,o)\{

if(typeof o=="string")

e.style.cssText=o;

else

for(var i in o)

e.style\[i\] = o\[i\];

\};

var slice = Array.prototype.slice;

window.Bind = function(object, fun) \{

var args = slice.call(arguments).slice(2);

return function() \{

return fun.apply(object, args);

\};

window.BindAsEventListener = function(object, fun,args) \{

var args = slice.call(arguments).slice(2);

return function(event) \{

return fun.apply(object, \[event || window.event\].concat(args));

\};

//copy from jQ

window.extend = function()\{

var target = arguments\[0\] || \{\}, i = 1, length = arguments.length, deep = true, options;

if ( typeof target === "boolean" ) \{

deep = target;

target = arguments\[1\] || \{\};

i = 2;

if ( typeof target !== "object" && Object.prototype.toString.call(target)!="\[object Function\]")

target = \{\};

for(;i

if ( (options = arguments\[ i \]) != null )

for(var name in options)\{

var src = target\[ name \], copy = options\[ name \];

if ( target === copy )

continue;

if ( deep && copy && typeof copy === "object" && !copy.nodeType )\{

target\[ name \] = arguments.callee( deep, src || ( copy.length != null ? \[ \] : \{ \} ), copy );

else if(copy !== undefined)

target\[ name \] = copy;

return target;

\};

//copy from jQ

window.each = function ( object, callback, args ) \{

var name, i = 0, length = object.length;

if ( args ) \{

args = Array.prototype.slice.call(arguments).slice(2);

if ( length === undefined ) \{

for ( name in object )

if ( callback.apply( object\[ name \],\[name,object\[ name \]\].concat(args) ) === false )

break;

\} else

for ( ; i < length; i++)

if ( callback.apply( object\[ i \],\[i,object\[ i \]\].concat(args)) === false ) //

break;

\} else \{

if ( length === undefined ) \{

for ( name in object )

if ( callback.call( object\[ name \], name, object\[ name \] ) === false )

break;

\} else

for ( var value = object\[0\];

i < length && callback.call( value, i, value ) !== false; value = object\[++i\] )\{\}

return object;

\};

window.currentStyle = function(element)\{

return element.currentStyle || doc.defaultView.getComputedStyle(element, null);

\};

window.objPos = function(elem)\{

var left = 0, top = 0, right = 0, bottom = 0,doc = elem ? elem.ownerDocument : doc;

if ( !elem.getBoundingClientRect || window.Sys.ie8 ) \{

var n = elem;

while (n) \{ left += n.offsetLeft, top += n.offsetTop; n = n.offsetParent; \};

right = left + elem.offsetWidth; bottom = top + elem.offsetHeight;

\} else \{

var rect = elem.getBoundingClientRect();

left = right = doc.documentElement.scrollLeft || doc.body.scrollLeft;

top = bottom = doc.documentElement.scrollLeft || doc.body.scrollLeft;

left += rect.left; right += rect.right;

top += rect.top; bottom += rect.bottom;

return \{ "left": left, "top": top, "right": right, "bottom": bottom \};

\};

window.hasClass = function(element, className)\{

return element.className.match(new RegExp('(\\\\s|^)'+className+'(\\\\s|$)'));

\};

window.addClass = function(element, className)\{

!window.hasClass(element, className)&&(element.className += " "+className);

\};

window.removeClass = function(element, className)\{

window.hasClass(element, className)&&(element.className = element.className.replace(new RegExp('(\\\\s|^)'+className+'(\\\\s|$)'),' '));

\})(document);

//------------------------------------------------------------

(function(doc,undefined)\{

var win = this;

win.easyTree = function()\{

this.init.apply(this,arguments);

\};

win.easyTree.prototype = \{

options : \{

\},

init : function(options)\{

this.deflaut = extend(this.options,options);

this.container = options.container;

this.data = options.data;

//根节点直接在这里生成

if(this.data.length>=1)\{

var ul = $c('ul',this.container),

self = this,

li;

each(this.data,function(i,o)\{

li = $c('li',ul);

li.className = 'root';

li.innerHTML = '![5d0f7de5ee6812edeeb753d72b9a31dd.png][]'+o.name+'';

o.child

&&self.bulidTree(o.child,li,'t')

\});

\},

bulidTree : function(data,parent,first)\{

if(data.length===0)

return;

var ul = $c('ul',parent),

self = this,

len = data.length,

imgClassName,

li;

first

? ul.style.paddingLeft = '0px'

: ul.style.display = 'none';

each(data,function(i,o)\{

var isLast = (len-1)===i;

li = $c('li',ul);

li.className = 'folder'+(isLast?'l':'');

imgClassName = o.child

? isLast?'tvdash-fl':'tvdash-f'

: isLast?'tvdash-tl':'tvdash-t';

li.innerHTML = '![5d0f7de5ee6812edeeb753d72b9a31dd.png][]'+o.name+'';

img = li.getElementsByTagName('img')\[0\];

addListener(img,'click',BindAsEventListener(self,self.openOrClose,li,img));

o.child

&&self.bulidTree(o.child,li);

\});

\},

openOrClose : function(e,li,img)\{

var ul = li.getElementsByTagName('ul')\[0\];

if(ul)\{

ul.style.display = ul.style.display === 'none'?'':'none';

var name = img.className,

is = img.className.indexOf('open')>-1;

img.className = is?name.replace('-open',''):name+'-open';

\})(document);

window.onload = function()\{

var i = 0;

var data = \[\{id:i,name:'根节点',child:\[\]\}\];

while(i<100)\{

i++;

data\[0\].child.push(\{id:i,name:'节点'+i,child:\[

\{id:i\*10+1,name:'节点'+i+'-1',child:\[

\{id:i\*11+1,name:'节点'+i+'-1-2'\},

\{id:i\*11+2,name:'节点'+i+'-1-3'\},

\{id:i\*11+3,name:'节点'+i+'-1-4'\}

\]\},

\{id:i\*10+2,name:'节点'+i+'-2',child:\[

\{id:i\*11+4,name:'节点'+i+'-2-2'\},

\{id:i\*11+5,name:'节点'+i+'-2-3'\},

\{id:i\*11+6,name:'节点'+i+'-2-4'\}

\]\},

\{id:i\*10+3,name:'节点'+i+'1-3'\}

\]\});

var t = new Date().getTime();

new easyTree(\{

container : $$('demo'),

data : data

\});

$$('sss').innerHTML ='一共1000个节点 共耗时：'+ (new Date().getTime()-t)+'毫秒'

上面只是一个简单的树，但是树应该是有input的，并且能够选中。记录选中能够开打任何节点，能够删除，不能够编辑、保存。说一下我在这里怎么完成上面的功能。选中应该是比较麻烦的，因为选中了一个节点，要让他所有的子节点都选中，他的父节点也有可能要选中(如果同级的都是选中状态的)。接着他的父的父也有可能要选中，所以设计到很多的查找，当生成一个li的时候，给li一个属性：

li.child.push(\{

li : li,

input : isInput ?$q('input',li)\[0\]:undefined,

data : o

\});

记录下他下一级(是下一级 不是所有的子 )的所有的input 和li同时记录父的li 和 input：

li.parent = \{

li : parent,

input : isInput ?$q('input',parent)\[0\]:undefined

\};

这样查找起来很方便，但是内存就要用的多些了。

easytree

body\{font:12px/1.5 '宋体',tahoma;\}

ul,li\{

list-style: none outside none;

margin: 0;

overflow: hidden;

padding: 0;

\#demo span\{

background: url("../../images/201202/icon.png") no-repeat scroll 0 0 transparent;

border: medium none;

height: 20px;

vertical-align: top;

width: 20px;

display :inline-block;

\#demo .root\{

margin-left: -20px;

\#demo .root input\{

vertical-align: middle;

\#demo ul\{

padding-left: 20px;

\#demo .folder\{

background: url("../../images/201202/i.gif") repeat-y scroll 0 21px transparent;

\#demo img\{

background: url("../../images/201202/icon.png") no-repeat scroll 0 0 transparent;

border: medium none;

height: 20px;

vertical-align: top;

width: 20px;

\#demo .tvicon-open\{

background-position: -160px -40px;

\#demo .tvdash-f\{

background-position: -240px -40px;

\#demo .tvdash-f-open\{

background-position: -200px -40px;

\#demo .tvdash-fl\{

background-position: -100px -40px;

\#demo .tvdash-fl-open\{

background-position: -80px -40px;

\#demo .tvdash-t\{

background-position: -180px -40px;

\#demo .tvdash-tl\{

background-position: -60px -40px;

\#demo .tvicon-f\{

background-position: -120px -40px;

\#demo .tvicon-f-open\{

background-position: -140px -40px;

\#demo .tvicon-tl\{

background-position: -220px -40px;

输入id值

返回的是节点id值 也可以是主键值

(function(doc,undefined)\{

var window = this;

window.Sys = function (ua)\{

var b = \{

ie: /msie/.test(ua) && !/opera/.test(ua),

opera: /opera/.test(ua),

safari: /webkit/.test(ua) && !/chrome/.test(ua),

firefox: /firefox/.test(ua),

chrome: /chrome/.test(ua)

\},vMark = "";

for (var i in b) \{

if (b\[i\]) \{ vMark = "safari" == i ? "version" : i; break; \}

b.version = vMark && RegExp("(?:" + vMark + ")\[\\\\/: \](\[\\\\d.\]+)").test(ua) ? RegExp.$1 : "0";

b.ie6 = b.ie && parseInt(b.version, 10) == 6;

b.ie7 = b.ie && parseInt(b.version, 10) == 7;

b.ie8 = b.ie && parseInt(b.version, 10) == 8;

return b;

\}(window.navigator.userAgent.toLowerCase());

window.Sys.ie6&&doc.execCommand("BackgroundImageCache", false, true);

window.$$ = function(Id)\{

return doc.getElementById(Id);

\};

window.$q = function(name,parent)\{

return parent.getElementsByTagName(name);

\};

window.$c = function(name,parent)\{

var elem = typeof name==='object'?name:doc.createElement(name);

parent&&parent.appendChild(elem);

return elem;

\};

window.addListener = function(element,e,fn)\{

!element.events&&(element.events = \{\});

element.events\[e\]&&(element.events\[e\]\[addListener.guid++\]=fn)||(element.events\[e\] = \{'0':fn\});

element.addEventListener?element.addEventListener(e,fn,false):element.attachEvent("on" + e,fn);

\};

window.addListener.guid = 1;

window.removeListener = function(element,e,fn)\{

var handlers = element.events\[e\],type;

if(fn)\{

for(type in handlers)

if(handlers\[type\]===fn)\{

element.removeEventListener?element.removeEventListener(e,fn,false):element.detachEvent("on" + e,fn);

delete handlers\[type\];

\}else\{

for(type in handlers)\{

element.removeEventListener?element.removeEventListener(e,handlers\[type\],false):element.detachEvent("on" + e,handlers\[type\]);

delete handlers\[type\];

\};

window.setStyle = function(e,o)\{

if(typeof o=="string")

e.style.cssText=o;

else

for(var i in o)

e.style\[i\] = o\[i\];

\};

var slice = Array.prototype.slice;

window.Bind = function(object, fun) \{

var args = slice.call(arguments).slice(2);

return function() \{

return fun.apply(object, args);

\};

window.BindAsEventListener = function(object, fun,args) \{

var args = slice.call(arguments).slice(2);

return function(event) \{

return fun.apply(object, \[event || window.event\].concat(args));

\};

//copy from jQ

window.extend = function()\{

var target = arguments\[0\] || \{\}, i = 1, length = arguments.length, deep = true, options;

if ( typeof target === "boolean" ) \{

deep = target;

target = arguments\[1\] || \{\};

i = 2;

if ( typeof target !== "object" && Object.prototype.toString.call(target)!="\[object Function\]")

target = \{\};

for(;i

if ( (options = arguments\[ i \]) != null )

for(var name in options)\{

var src = target\[ name \], copy = options\[ name \];

if ( target === copy )

continue;

if ( deep && copy && typeof copy === "object" && !copy.nodeType )\{

target\[ name \] = arguments.callee( deep, src || ( copy.length != null ? \[ \] : \{ \} ), copy );

else if(copy !== undefined)

target\[ name \] = copy;

return target;

\};

//copy from jQ

window.each = function ( object, callback, args ) \{

var name, i = 0, length = object.length;

if ( args ) \{

args = Array.prototype.slice.call(arguments).slice(2);

if ( length === undefined ) \{

for ( name in object )

if ( callback.apply( object\[ name \],\[name,object\[ name \]\].concat(args) ) === false )

break;

\} else

for ( ; i < length; i++)

if ( callback.apply( object\[ i \],\[i,object\[ i \]\].concat(args)) === false ) //

break;

\} else \{

if ( length === undefined ) \{

for ( name in object )

if ( callback.call( object\[ name \], name, object\[ name \] ) === false )

break;

\} else

for ( var value = object\[0\];

i < length && callback.call( value, i, value ) !== false; value = object\[++i\] )\{\}

return object;

\};

window.currentStyle = function(element)\{

return element.currentStyle || doc.defaultView.getComputedStyle(element, null);

\};

window.objPos = function(elem)\{

var left = 0, top = 0, right = 0, bottom = 0,doc = elem ? elem.ownerDocument : doc;

if ( !elem.getBoundingClientRect || window.Sys.ie8 ) \{

var n = elem;

while (n) \{ left += n.offsetLeft, top += n.offsetTop; n = n.offsetParent; \};

right = left + elem.offsetWidth; bottom = top + elem.offsetHeight;

\} else \{

var rect = elem.getBoundingClientRect();

left = right = doc.documentElement.scrollLeft || doc.body.scrollLeft;

top = bottom = doc.documentElement.scrollLeft || doc.body.scrollLeft;

left += rect.left; right += rect.right;

top += rect.top; bottom += rect.bottom;

return \{ "left": left, "top": top, "right": right, "bottom": bottom \};

\};

window.hasClass = function(element, className)\{

return element.className.match(new RegExp('(\\\\s|^)'+className+'(\\\\s|$)'));

\};

window.addClass = function(element, className)\{

!window.hasClass(element, className)&&(element.className += " "+className);

\};

window.removeClass = function(element, className)\{

window.hasClass(element, className)&&(element.className = element.className.replace(new RegExp('(\\\\s|^)'+className+'(\\\\s|$)'),' '));

\})(document);

//------------------------------------------------------------------------------------

(function(doc,undefined)\{

var win = this,

primary;

win.easyTree = function()\{

this.init.apply(this,arguments);

\};

win.easyTree.prototype = \{

options : \{

primary : 'id',

isInput : false,

isIco : false

\},

init : function(options)\{

this.deflaut = extend(this.options,options);

this.container = options.container;

//数据源 形式\{id:data\[i\]\}

this.data=\{\};

//被勾选的项

this.selected = \{\};

//根节点直接在这里生成

if(options.data.length>=1)\{

primary = this.deflaut.primary;

var frag=document.createDocumentFragment()

var ul = $c('ul',frag),//this.container

self = this,

input = this.deflaut.isInput?'':'',

li;

each(options.data,function(i,o)\{

li = $c('li',ul);

li.className = 'root';

li.innerHTML = \[

'',

input,

''+o.name+''

\].join('');

li.setAttribute('primary',o\[primary\]);

self.data\[o\[primary\]\] = \{elem:li,data:o\};

o.child

&&self.bulidTree(o.child,li,'t');

\});

//只绑定一个节点 展开和checkedbox判断都在里面

addListener(ul,'click',BindAsEventListener(self,self.operation));

this.container.appendChild(frag);

\},

bulidTree : function(data,parent,first)\{

if(data.length===0)

return;

var ul = $c('ul',parent),

self = this,

len = data.length,

isInput = this.deflaut.isInput,

input = isInput?'':'',

isIco = this.deflaut.isIco,

imgClassName,

img,

li;

first

? ul.style.paddingLeft = '0px'

: ul.style.display = 'none';

parent.child = \[\];

each(data,function(i,o)\{

var isLast = (len-1)===i,

ico = isIco

? o.child

? ''

: ''

: '';

li = $c('li',ul);

li.className = 'folder'+(isLast?'l':'');

imgClassName = o.child

? isLast?'tvdash-fl':'tvdash-f'

: isLast?'tvdash-tl':'tvdash-t';

li.innerHTML = \[

'',

ico,

input,

''+o.name+''

\].join('');

//当前li保存父li的相关信息 只是一个对象

li.parent = \{

li : parent,

input : isInput ?$q('input',parent)\[0\]:undefined

\};

//当前li保存子li的相关信息 是一个数组

parent.child.push(\{

li : li,

input : isInput ?$q('input',li)\[0\]:undefined,

data : o

\});

li.setAttribute('primary',o\[primary\]);

li.getElementsByTagName('span')\[0\].setAttribute('mark','mark');

self.data\[o\[primary\]\] = \{elem:li,data:o\};

o.child

&&self.bulidTree(o.child,li);

\});

\},

operation : function(e)\{

var elem = e.srcElement || e.target,

nodeName = elem.nodeName.toLocaleLowerCase();

/\*显示隐藏子菜单\*/

if((nodeName==='span'&&elem.getAttribute('mark'))||(nodeName==='a'))\{

var li = elem.parentNode,

ul = $q('ul',li)\[0\],

img = $q('span',li)\[0\],

ico = $q('span',li)\[1\];

if(ul)\{

ul.style.display = ul.style.display === 'none'?'':'none';

var name = img.className,

is = img.className.indexOf('open')>-1;

img.className = is?name.replace('-open',''):name+'-open';

if(ico)\{

ico.className = is?ico.className.replace('-open',''):ico.className+'-open';

\};

//选中checkedbox的时候的相应的操作

if(nodeName==='input')\{

var isCheck = elem.checked,

li = elem.parentNode,

ul = $q('ul',li)\[0\],

id = li.getAttribute('primary'),

//该元素的索引是否已经添加到了 this.selected中

isIn = id in this.selected;

//操作this.selected 从里面添加或者删除

isCheck

? !isIn

&&(this.selected\[id\]=id)

: isIn

&&delete this.selected\[id\];

this.findChild(li,isCheck);

this.findParent(li,isCheck);

\},

findParent : function(child,b)\{

if(!child.parent)

return;

var parentLi = child.parent.li,

id = parentLi.getAttribute('primary')

isAll = true;

if(b)\{

//看他父下面的所有li是不是都是选中状态的

each(parentLi.child,function(i,o)\{

if(!o.input.checked)\{

isAll = false;

return false;

\});

//如果都是选中状态

//继续查找他的父

if(isAll)\{

child.parent.input.checked = true;

!(id in this.selected)

&&(this.selected\[id\] = id);

this.findParent(parentLi,b);

\}else\{

if(child.parent.input.checked)\{

child.parent.input.checked = false;

id in this.selected

&& delete this.selected\[id\];

this.findParent(parentLi,b);

\},

/\*

查找子节点 将所有没有选中的字节点选中 并放到this.selected里面去

或者取消所有的子节点

\*/

findChild : function(parent,b)\{

if(!parent.child)

return;

var self = this;

? each(parent.child,function(i,o)\{

if(!o.input.checked)\{

o.input.checked = true;

!(o.data\[primary\] in self.selected)

&&(self.selected\[o.data\[primary\]\] = o.data\[primary\]);

o.li.child

&&self.findChild(o.li,b);

\})

: each(parent.child,function(i,o)\{

if(o.input.checked)\{

o.input.checked = false;

o.data\[primary\] in self.selected

&& delete self.selected\[o.data\[primary\]\];

o.li.child

&&self.findChild(o.li,b);

\});

\},

getAllSelect : function()\{

var arr = \[\],

id;

for(id in this.selected)

arr.push(id);

returnarr.join(',')

\},

openNode : function(id)\{

if(id in this.data)\{

var li = this.data\[id\].elem,

parent = li.parentNode,

img,

ico;

while(parent.style.display==='none')\{

parent.style.display = '';

li = li.parent.li;

img =$q('span',li)\[0\];

ico =$q('span',li)\[1\];

img.className=img.className+'-open';

ico

&&(ico.className=ico.className+'-open');

parent = li.parentNode;

\})(document);

window.onload = function()\{

var i = 0,j=100;

var data1 = \[\{id:i,name:'根节点',child:\[\]\}\];

while(i<100)\{

i++;

data1\[0\].child.push(\{id:i,name:'节点'+i,child:\[

\{id:++j,name:'节点'+i+'-1',child:\[

\{id:++j,name:'节点'+i+'-1-1'\},

\{id:++j,name:'节点'+i+'-1-2'\},

\{id:++j,name:'节点'+i+'-1-3'\}

\]\},

\{id:++j,name:'节点'+i+'-2',child:\[

\{id:++j,name:'节点'+i+'-2-1'\},

\{id:++j,name:'节点'+i+'-2-2'\},

\{id:++j,name:'节点'+i+'-2-3'\}

\]\},

\{id:++j,name:'节点'+i+'-3-1'\}

\]\});

var t = new Date().getTime();

window.tt= new easyTree(\{

container : $$('demo'),

isInput : true,

isIco : true,

data : data1

\});

//alert(new Date().getTime()-t1)

$$('sss').innerHTML ='一共1000个节点 共耗时：'+ (new Date().getTime()-t)+'毫秒'

function ch(v)\{

tt.openNode(v)

function ss()\{

alert(tt.getAllSelect());

基本能达到要求了。

[5d0f7de5ee6812edeeb753d72b9a31dd.png]: /images/20221005/3c782582a1db4dd4b7dad95d7869e104.png

html5 树形结构 js,用JavaScript实现一个简单的树结构

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