diff --git a/AES/src/main/java/com/example/aes/user/dao/ClassstudentsDaoI.java b/AES/src/main/java/com/example/aes/user/dao/ClassstudentsDaoI.java
index bc31599..4caae26 100644
--- a/AES/src/main/java/com/example/aes/user/dao/ClassstudentsDaoI.java
+++ b/AES/src/main/java/com/example/aes/user/dao/ClassstudentsDaoI.java
@@ -11,6 +11,8 @@ public interface ClassstudentsDaoI extends BaseDaoI<Classstudents> {
 
 	public boolean findClassStudentByUserId(int userId, int classId); // 查看该同学是否已在该课程中
 
+	boolean findClassInviteCode(String inviteCode);
+
 	public int getClassStudentsNum(int classId); // 获取班级的学生人数
 
 	public List<Classstudents> getClassStudentsByExamId(int examId, boolean history); // 获取考试的学生