// hello.c
void main(void)
{
	printf("hello world!");
	
}
void getAge(uint8_t *age)
{
	//
	*age = 10;
}
void date_20200821(void)
{
	return 20200821+weeks;
}

void hello_20200822(void)
{
	
}

void hello_school()
{
	watch is you name;
}
void hello_class()
{
	watch is you name;
}

void hello_chenyan()
{
	debug;
}