Linux下UNIX时间戳(UNIX timestamp)转本地时间

需要注意的：

• time函数，可以传入time_t类型的指针，如果为NULL，那么返回的值是函数内部的缓冲去
• localtime函数返回的指针也是函数内部缓冲区的地址，重复调用，那么最后一次传入的参数将被转换

#include <stdio.h>#include <stdlib.h>#include <string.h>#include <time.h>int main(int argc, char **argv){struct tm *local_start = NULL, *local_stop = NULL;time_t now1 = 0, now2 = 0;now1 = time(NULL);sleep(3);now2 = time(NULL);printf("%lu, %lu\n", now1, now2);local_start = localtime(&now1);printf("%d-%d-%d %d:%d:%d\n", local_start->tm_year + 1900, local_start->tm_mon + 1, local_start->tm_mday, local_start->tm_hour, local_start->tm_min, local_start->tm_sec);local_stop = localtime(&now2);printf("%d-%d-%d %d:%d:%d\n", local_stop->tm_year + 1900, local_stop->tm_mon + 1, local_stop->tm_mday, local_stop->tm_hour, local_stop->tm_min, local_stop->tm_sec);return 0;}