树结构展开之后箭头向下

src/main/webapp/resources/lib/treeview/js/angular.treeview.js

@@ -52,7 +52,9 @@
 							'<i class="expanded" data-ng-show="node.' + nodeChildren + '.length && !node.collapsed" data-ng-click="' + treeId + '.selectNodeHead(node)"></i>' +
 							'<i class="normal" data-ng-hide="node.' + nodeChildren + '.length"></i> ' +
 							'<span data-ng-class="node.selected" data-ng-click="' + treeId + '.selectNodeLabel(node)">{{node.' + nodeLabel + '}}</span>' +
-							'<b><i class="fa fa-angle-right"></i></b>' +
+                    		'<b data-ng-show="node.' + nodeChildren + '.length && node.collapsed"><i class="fa fa-angle-right"></i></b>' +
+                    		'<b data-ng-show="node.' + nodeChildren + '.length && !node.collapsed"><i class="fa fa-angle-down"></i></b>' +
+                    		'<b data-ng-hide="node.' + nodeChildren + '.length"><i class="fa fa-angle-right"></i></b> ' +
 							'<div data-ng-hide="node.collapsed" data-tree-id="' + treeId + '" data-tree-model="node.' + nodeChildren + '" data-node-id=' + nodeId + ' data-node-label=' + nodeLabel + ' data-node-children=' + nodeChildren + '></div>' +
 						'</li>' +
 					'</ul>';