diff --git a/examples/v2/course.csv b/examples/v2/course.csv
index 1deedbf3..b0335b68 100644
--- a/examples/v2/course.csv
+++ b/examples/v2/course.csv
@@ -1,3 +1,7 @@
 x101,Math,3,No5
 y102,English,6,No11
 "z103",Chinese,1,No1
+0test,Test,2,No2
+00test,Test2,4,No3
+"000test",中国（　　）,5,No10
+"0000test",中国（　）,7,No10