文件编程之时间编程

时间编程

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

int main(void)
{
    struct tm *local;
    time_t t;
    t=time(NULL);
    local = localtime(&t);
    printf("Local hour is :%d\n",local->tm_hour);
    
    local = gmtime(&t);
    printf("UTC hour is :%d\n",local->tm_hour);


    /* timer2 */
    struct tm *ptr;
    time_t lt;
    lt=time(NULL);
    ptr = gmtime(&lt);
    printf("asctime:%s",asctime(ptr));
    printf("ctime:%s",ctime(&lt));
    

    return 0;
}