1.程序分析：

2.程序源代码：

#include "stdio.h"

#include "conio.h"

#include "time.h"

void main()

{

time_t lt /*define a longint time varible*/

lt=time(NULL) /*system time and date*/

printf(ctime(<)) /*english format output*/

printf(asctime(localtime(<))) /*tranfer to tm*/

printf(asctime(gmtime(<))) /*tranfer to Greenwich time*/

getch()

}

-shi jiancheng xumiao shu