v2版本正式上线测试版

static/zTree3/api/cn/treeNode.level.html

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+<div class="apiDetail">
+<div>
+	<h2><span>Number</span><span class="path">treeNode.</span>level</h2>
+	<h3>概述<span class="h3_info">[ 依赖 <span class="highlight_green">jquery.ztree.core</span> 核心 js ]</span></h3>
+	<div class="desc">
+		<p></p>
+		<div class="longdesc">
+			<p>记录节点的层级</p>
+			<p class="highlight_red">初始化节点数据时，由 zTree 增加此属性，请勿提前赋值</p>
+		</div>
+	</div>
+	<h3>Number 格式说明</h3>
+	<div class="desc">
+	<p class="highlight_red">根节点 level = 0，依次递增</p>
+	</div>
+	<h3>treeNode 举例</h3>
+	<h4>1. 查看当前被选中的节点的级数</h4>
+	<pre xmlns=""><code>var treeObj = $.fn.zTree.getZTreeObj("tree");
+var sNodes = treeObj.getSelectedNodes();
+if (sNodes.length > 0) {
+	var level = sNodes[0].level;
+}
+</code></pre>
+</div>
+</div>