add

4G/4g.c

@@ -16,4 +16,9 @@ void sch_4g_get_parameter(char *param)
 void sch_4g_check_error(void)
 {
 	
-}
+}
+
+void sch_4g_message(void)
+{
+  printf("hello 20200820 \n");	
+}

4G/4g.h

@@ -3,4 +3,5 @@
 void sch_4g_init(void);
 void sch_4g_set_parameter(char * param);
 void sch_4g_get_parameter(char *param);
-void sch_4g_check_error(void);
+void sch_4g_check_error(void);
+void sch_4g_message(void);

classroom/classroom.c

@@ -7,4 +7,9 @@ void cs_check_remain_classroom(void)
 void cs_book_classroom(void)
 {
 	
+}
+
+void cs_find_classromm()  // 2020-8-20
+{
+	
 }

classroom/classroom.h

@@ -3,4 +3,5 @@
 
 void cs_check_remain_classroom(void);
 void cs_book_classroom(uint16_t classroom);
+void cs_find_classromm();  // 2020-8-20
 #endif

study/study.c

@@ -19,4 +19,9 @@ uint8_t study_homework(void)
 uint8_t study_get_temperature(void)
 {
 	return check_temperature();
+}
+
+void study_holiday(void)  // 2020-8-20
+{
+	
 }

study/study.h

@@ -4,4 +4,5 @@ void study_set_class(uint8_t class);
 uint8_t study_get_class(void);
 
 uint8_t study_homework(void);
-uint8_t study_get_temperature(void);
+uint8_t study_get_temperature(void);
+void study_holiday(void);