diff --git a/libraries/map-custom/src/main/java/com/mogo/map/impl/custom/CustomMapApiBuilder.java b/libraries/map-custom/src/main/java/com/mogo/map/impl/custom/CustomMapApiBuilder.java
index 7e62eec4be..7351936077 100644
--- a/libraries/map-custom/src/main/java/com/mogo/map/impl/custom/CustomMapApiBuilder.java
+++ b/libraries/map-custom/src/main/java/com/mogo/map/impl/custom/CustomMapApiBuilder.java
@@ -96,7 +96,7 @@ class CustomMapApiBuilder implements IMogoMapApiBuilder {
         Log.d(TAG,"setDebugMode==true");
         NavAutoApi.INSTANCE.init( context, MapParams.Companion.init()
                 .setDebugMode( true )
-                .setDataFileSource(0)  //todo 使用本地地图数据
+                .setDataFileSource(0)  //todo 1-使用本地地图数据，0-使用在线地图数据
                 .setCoordinateType( MapParams.COORDINATETYPE_GCJ02 )
                 .setPerspectiveMode( MapParams.MAP_PERSPECTIVE_2D )
                 .setZoom( 20 )