time_h && struct tm

/* time_h的使用 */

//第一种方式

time_t timer1;

time(&timer1);

//第二种方式

time_t timer2;

timer2 = time(NULL);

//第三种方式

time_t timer3 = time(NULL);

/*struct tm 的使用*/

struct tm *now;

timer_t timer = time(NULL);

now = localtime(&timer);

printf("%s\n",asctime(now));

printf("%04d",now->tm_year);

printf("%02d",now->tm_mon);

printf("%02d",now->tm_mday);

time_h && struct tm