read_m.c

入门程序

#include "print_do.h"

main()
{
    char *s;
	get_shm();
	at_shm();
	s=shm;

	printf("====brgin    %d   \n",s);
    printf("====%s\n",s);
    printf("====end \n",s);
	exit(0);
}