后台显示订单备注

@@ -49,7 +49,7 @@
 						<div class="panel-heading">备注</div>
 						<table class="table">
 							<tr>
-								<td>{$vo.remark}</td>
+								<td>{$vo.remark|default='未填写'}</td>
 							</tr>
 						</table>
 					</div>