修改fgb服务地址

Author: xilanhuaweidapao

examples/openlayers/fgb_bbox_load.html

@@ -14,7 +14,7 @@
     <script type="text/javascript">
       var host = window.isLocal ? window.server : 'https://iserver.supermap.io',
         url = host + '/iserver/services/map-china400/rest/maps/China_4326';
-      var fgbUrl = 'https://iclient.supermap.io/minio/fgb/waterways.fgb';
+      var fgbUrl = 'https://iclient.supermap.io/minio/fgb/roads.fgb';
       var map;
       map = new ol.Map({
         target: 'map',