C语言基础：mktime用法示范，输出时间差

C语言基础：mktime用法演示，输出时间差

#include <stdio.h>
#include <time.h>
int main(void)
 {
   time_t seconds;
   struct tm time_fields;
   time_fields.tm_mday = 4;
   time_fields.tm_mon = 7;
   time_fields.tm_year = 94;
   time_fields.tm_hour = 0;
   time_fields.tm_min = 0;
   time_fields.tm_sec = 0;
   seconds = mktime(&time_fields);
   printf("The number of seconds between 7-4-94 and 1-1-70 is %ld\n",
     seconds);
return 1;
 }

输出结果：GCC编译

The number of seconds between 7-4-94 and 1-1-70 is 775929600