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1 files changed, 8 insertions, 12 deletions

diff --git a/example/get_ip_coun.c b/example/get_ip_coun.c
index b43ec15..82d6028 100644
--- a/example/get_ip_coun.c
+++ b/example/get_ip_coun.c
@@ -10,6 +10,10 @@
 		printf("\n");							\
 	}while(0)
 
+/*
+ *	Query the COUNTRY field of an IP address in mmdb file.
+ */
+
 int main(int argc, char **argv)
 {
 	if(argc < 2)
@@ -18,8 +22,8 @@ int main(int argc, char **argv)
 		return 0;
 	}
 
-	char *filename = argv[1];
-	char *ip_address = argv[2];
+	char *filename = argv[1];	// mmdb file path
+	char *ip_address = argv[2];	// input IP address
 
 	MMDB_s mmdb;
 	int status = MMDB_open(filename, MMDB_MODE_MMAP, &mmdb);
@@ -57,14 +61,11 @@ int main(int argc, char **argv)
 		exit(3);
 	}
 
-	// MMDB_entry_data_list_s *entry_data_list = NULL;
 	MMDB_entry_data_s entry_data;
 
 	int exit_code = 0;
 	if (result.found_entry)
 	{
-		// int status = MMDB_get_entry_data_list(&result.entry,
-		// 		&entry_data_list);
 
 		int status = MMDB_get_value(&result.entry, &entry_data, "COUNTRY", NULL);
 
@@ -78,11 +79,6 @@ int main(int argc, char **argv)
 			goto end;
 		}
 
-		// if (NULL != entry_data_list) 
-		// {
-		// 	MMDB_dump_entry_data_list(stdout, entry_data_list, 2);
-		// }
-
 		if (entry_data.has_data)
 		{
 			char *name_en = malloc(sizeof(entry_data.data_size + 1));
@@ -102,8 +98,8 @@ int main(int argc, char **argv)
 				ip_address);
 		exit_code = 5;
 	}
+
 end:
-	// MMDB_free_entry_data_list(entry_data_list);
 	MMDB_close(&mmdb);
 	exit(exit_code);
-}
\ No newline at end of file
+}