linux獲取系統時間

#include <stdio.h>
#include <time.h>

int main()
{
    struct tm *local;
    time_t t;
    t = time(NULL);
    local = localtime(&t);

    printf("local year:%d\n", local->tm_year+1900);
    printf("local month:%d\n", local->tm_mon+1);
    printf("local day:%d\n", local->tm_mday);
    printf("local hour:%d\n", local->tm_hour);
    printf("local minute:%d\n", local->tm_min);
    printf("local sec:%d\n", local->tm_sec);
    
    printf("asctime:%s", asctime(local));
    printf("ctime:%s", ctime(&t));
    return 0;
}