怎样在c语言编的程序加入时间

c里面有个关于时间的tm结构体，可得到本地时间。给个例子，自己去实验。如下：

int date()

{

int year,mon,day,hour,min,sec,a

struct tm *d

time_t t

time(&t)

d=localtime(&t)

year=d->tm_year+1900

mon=d->tm_mon+1

day=d->tm_mday

hour=d->tm_hour

min=d->tm_min

sec=d->tm_sec

a=day+100*mon+10000*year

return a

}

void main()

{

struct tm *d

time_t t

//long t

time(&t)

//struct tm * local_time = localtime(&t)

d=localtime(&t)

printf("%s\n",ctime(&t))

printf("%d\n",d->tm_mon+1)

printf("%d\n",d->tm_mday)

printf("%d\n",d->tm_year+1900)

printf("%d\n",d->tm_hour)

printf("%d\n",date())

}

#include <time.h>

time_t now

now = time (NULL)

printf("%s ",ctime(&now))

struct tm *tm time_t t

char timebuf[20]

memset(timebuf,0,sizeof(timebuf))

time(&t)

tm = localtime(&t)

strftime(timebuf,15,"%Y%m%d%H%M%S",tm)

printf("current time is [%s]",timebuf)

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