diff --git a/mysyslib.h b/mysyslib.h
index 04adab5..2d855cc 100644
--- a/mysyslib.h
+++ b/mysyslib.h
@@ -18,7 +18,11 @@ typedef struct{
     int nums;
 }ss;
 
-ss* init(int)
+ss* init(int);
+int mainMenu(ss*);
+void stucpy(Student*, Student*);
+void stuswp(Student*, Student*);
+Student* newStudent();
 void ModifyInfo(ss* stu);
 void getCom(ss*);
 void Print(Student*);