#include "4g.h" void sch_4g_init(void) { uint8_t status = get_4g_status(); } void sch_4g_set_parameter(char * param) { } void sch_4g_get_parameter(char *param) { } void sch_4g_check_error(void) { } void sch_4g_message(void) { printf("hello 20200820 \n"); }