c_cpp 设置当前日期和时间

Posted 2021-05-14

// crt_asctime_s.c
#include <time.h>
#include <stdio.h>

struct tm newtime;
__time32_t aclock;


int CurrentDateandTime()
{
   char buffer[32];
   errno_t errNum;
   _time32( &aclock );   // Get time in seconds.
   _localtime32_s( &newtime, &aclock );   // Convert time to struct tm form.

   // Print local time as a string.

   errNum = asctime_s(buffer, 32, &newtime);
   if (errNum)
   {
       printf("Error code: %d", (int)errNum);
       return 1;
   }
   printf( "Current date and time: %s", buffer );
}


int main( void )
{
   CurrentDateandTime();
   return 0;
}