C语言time()函数与localtime()如何配合使用

?C???,time()???????(1970?1?1? 00:00:00 UTC)????????localtime()??????????????,???????tm??????,????????????????????????

?????????time()???localtime()??????:

#include 
#include 

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

    printf("????:%d-d-d d:d:d\n",
           localT->tm_year + 1900, localT->tm_mon + 1, localT->tm_mday,
           localT->tm_hour, localT->tm_min, localT->tm_sec);

    return 0;
}

???????,????time()???????????,????localtime()???????????,???????tm???????,????tm??????,????????????????????,?????????