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准备好需要用到的图标。

新建html文档。

书写hmtl代码。

<div class="htmleaf-container">

<div class="htmleaf-content">

<h2>带日志JS多级目录树结构特效</h2>

<button onClick="expand_all()">扩大所有节点</button>

<button onClick="collapse_all()">所有节点崩溃</button>

<button onClick="clear_log()">清除日志</button>

<br/><br/>

<div id="div_log"></div>

<div id="div_tree"></div>

</div>

</div>

书写css代码。

body { font-family: 'Helvetica Neue', Helvetica, 'Segoe UI', Arial, freesans; }

#div_tree { font: 10px Verdana, sans-serif; display: inline-block; width: 300px; }

#div_log { width: 400px; height: 400px; overflow: scroll; padding: 10px; vertical-align: top; display: inline-block; border: 1px solid gray; font: 10px Verdana, sans-serif; line-height: 16px; }

ul.tree, ul.tree ul { list-style-type: none; background: url(vline.png) repeat-y; margin: 0; padding: 0; padding-left: 7px; -webkit-user-select: none; -moz-user-select: none; -ms-user-select: none; cursor: default; }

li.last { background-image: 'url("css/lastnode.png")'; background-repeat: no-repeat; }

ul.tree ul { padding-left: 7px; }

ul.tree li { margin: 0; padding: 0 12px; line-height: 22px; background: url(node.png) no-repeat; }

ul.tree li.last { background: #fff url(lastnode.png) no-repeat; }

img.exp_col { position: absolute; margin-top: 4px; margin-left: -20px; vertical-align: sub; }

img.exp_col_empty { position: absolute; margin-top: 4px; margin-left: -20px; vertical-align: sub; width: 16px; }

img.icon_tree { vertical-align: middle; padding-left: 3px; margin-top: -3px; }

a.node { padding: 2px; }

span.node a { padding-left: 3px; }

span.node { margin-left: -1px; padding-right: 3px; padding-top: 4px; padding-bottom: 4px; }

span.node:hover { margin-left: -1px; padding-right: 3px; padding-top: 4px; padding-bottom: 4px; background-color: #DCEDFF; border-radius: 2px; }

span.node_selected { margin-left: -2px; padding-right: 3px; padding-top: 4px; padding-bottom: 4px; background-color: #CEFFCE; border: 1px solid #8AE88A; border-radius: 2px; }

span.node_selected a { padding-left: 3px; }

.menu, .sub-menu { margin: 0; padding: 0; font: 10px Verdana, sans-serif; }

.menu, .sub-menu { list-style: none; background: #000; }

.sub-menu { background: #F1F1F1; }

.menu a { text-decoration: none; display: inline-block; padding: 8px; }

.menu span { position: absolute; width: 100%; height: 100%; }

.menu div { position: absolute; right: 4px; top: 0px; padding: 8px; }

.menu .menu_img { vertical-align: middle; }

.menu img { text-decoration: none; display: inline-block; vertical-align: sub; padding-left: 5px; }

.menu li { position: relative; }

.menu li:hover { background: aquamarine; cursor: pointer; }

.sub-menu li:hover { background: aquamarine; }

.menu li:hover > .sub-menu { display: block; }

.menu { width: 150px; position: absolute; background: #F1F1F1; -webkit-user-select: none; /* Chrome/Safari */ -moz-user-select: none; /* Firefox */ -ms-user-select: none; /* IE10+ */ cursor: default; box-shadow: 2px 2px 3px #BDBDBD; }

.sub-menu { display: none; position: absolute; min-width: 150px; box-shadow: 2px 2px 3px #BDBDBD; }

.menu .sub-menu { top: 0; left: 100%; }

书写并添加js代码。

<script src="lib/Aimara.js"></script>

<script>

win     dow.onload = function() {

var contex_menu = {

'context1' : {

elements : [

{

text : 'Node Actions',

icon: 'images/blue_key.png',

action : function(node) {

},

submenu: {

elements : [

{

text : 'Toggle Node',

icon: 'images/leaf.png',

action : function(node) {

node.toggleNode();

}

},

{

text : 'Expand Node',

icon: 'images/leaf.png',

action : function(node) {

node.expandNode();

}

},

{

text : 'Collapse Node',

icon: 'images/leaf.png',

action : function(node) {

node.collapseNode();

}

},

{

text : 'Expand Subtree',

icon: 'images/tree.png',

action : function(node) {

node.expandSubtree();

}

},

{

text : 'Collapse Subtree',

icon: 'images/tree.png',

action : function(node) {

node.collapseSubtree();

}

},

{

text : 'Delete Node',

icon: 'images/delete.png',

action : function(node) {

node.removeNode();

}

},

]

}

},

{

text : 'Child Actions',

icon: 'images/blue_key.png',

action : function(node) {

},

submenu: {

elements : [

{

text : 'Create Child Node',

icon: 'images/add1.png',

action : function(node) {

node.createChildNode('Created',false,'images/folder.png',null,'context1');

}

},

{

text : 'Create 1000 Child Nodes',

icon: 'images/add1.png',

action : function(node) {

for (var i=0; i<1000; i++)

node.createChildNode('Created -' + i,false,'images/folder.png',null,'context1');

}

},

{

text : 'Delete Child Nodes',

icon: 'images/delete.png',

action : function(node) {

node.removeChildNodes();

}

}

]

}

}

]

}

};

tree = createTree('div_tree','white',contex_menu);

div_log = document.getElementById('div_log');

tree.nodeBeforeOpenEvent = function(node) {

div_log.innerHTML += node.text + ': Before expand event<br/>';

}

tree.nodeAfterOpenEvent = function(node) {

div_log.innerHTML += node.text + ': After expand event<br/>';

}

tree.nodeBeforeCloseEvent = function(node) {

div_log.innerHTML += node.text + ': Before collapse event<br/>';

}

for (var i=1; i<10; i++) {

node1 = tree.createNode('Level 0 - Node ' + i,false,'images/star.png',null,null,'context1');

for (var j=1; j<5; j++) {

node2 = node1.createChildNode('Level 1 - Node ' + j, false, 'images/blue_key.png',null,'context1');

for (var k=1; k<5; k++) {

node3 = node2.createChildNode('Level 2 - Node ' + k, false, 'images/monitor.png',null,'context1');

}

}

}

tree.drawTree();

tree.createNode('Real Time',false,'images/leaf.png',null,null,'context1');

};

function expand_all() {

tree.expandTree();

}

function clear_log() {

document.getElementById('div_log').innerHTML = '';

}

function collapse_all() {

tree.collapseTree();

}

</script>

代码整体结构。

查看效果。