Collapse">
		<a href="#" onclick="$.tree.expand()">展开</a> /
		<a href="#" onclick="$.tree.collapse()">折叠</a>
	</div>
	<div id="tree" class="ztree treeselect"></div>
	</div>
	<th:block th:include="include :: footer" />
	<th:block th:include="include :: ztree-js" />
	<script th:inline="javascript">
		$(function() {
			var url = ctx + "system/dept/treeData";
			var options = {
		        url: url,
		        expandLevel: 2,
		        onClick : zOnClick
		    };
			$.tree.init(options);
		});
		
		functio