设置时间

[c]代码库

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

int main(void) 
{ 
   time_t t; 
   struct tm *area; 

   t = time(NULL); 
   area = localtime(&t); 
   printf("Number of seconds since 1/1/1970 is: %ld\n", t); 
   printf("Local time is: %s", asctime(area)); 

   t++; 
   area = localtime(&t); 
   printf("Add a second:  %s", asctime(area)); 

   t += 60; 
   area = localtime(&t); 
   printf("Add a minute:  %s", asctime(area)); 

   t += 3600; 
   area = localtime(&t); 
   printf("Add an hour:   %s", asctime(area)); 

   t += 86400L; 
   area = localtime(&t); 
   printf("Add a day:     %s", asctime(area)); 

   t += 2592000L; 
   area = localtime(&t); 
   printf("Add a month:   %s", asctime(area)); 

   t += 31536000L; 
   area = localtime(&t); 
   printf("Add a year:    %s", asctime(area)); 
   return 0; 
}