#include <stdio.h>
int main( void )
{
time_t t = time(0)
char tmp[64]
strftime( tmp, sizeof(tmp), "%Y/%m/%d %X %A 本年第%j天 %z",localtime(&t) )
puts( tmp )
return 0
}
size_t strftime(char *strDest, size_t maxsize, const char *format, const struct tm *timeptr)
根据格式字符串生成字符串。
struct tm *localtime(const time_t *timer)
取得当地时间，localtime获取的结果由结构tm返回
#include <stdio.h>typedef long long int time64
/*
将64位时间戳转化为时间数组
*/
void transformToDate(time64 timeStamp ,time64 **dateArry)
{
time64 low ,high ,mid ,t
time64 year ,month ,day ,hour ,minute ,second ,milliSecond
time64 daySum[] = {0 ,31 ,59 ,90 ,120 ,151 ,181 ,212 ,243 ,273 ,304 ,334 ,365}
time64 milOfDay = 24 * 3600 * 1000
time64 milOfHour = 3600 * 1000
/*防止超过9999-12-31 23:59:59:999*/
if(timeStamp > 315537897599999) {
timeStamp = 315537897599999
}
low = 1
high = 9999
while(low <= high)
{
mid = (low+high)>>1
t = ((mid-1) * 365 + (mid-1)/4 - (mid-1)/100 + (mid-1)/400) * milOfDay
if(t == timeStamp)
{
low = mid + 1
break
}
else if(t < timeStamp)
low = mid + 1
else
high = mid - 1
}
year = low-1
timeStamp -= ((year-1) * 365 + (year-1)/4 - (year-1)/100 + (year-1)/400) * milOfDay
int isLeapYear = ((year&3) == 0 && year%100!=0) || year%400 == 0
for(month = 1 (daySum[month] + ((isLeapYear && month > 1) ? 1 : 0)) * milOfDay <= timeStamp && month < 13 month ++) {
if(isLeapYear && month > 1)
++daySum[month]
}
timeStamp -= daySum[month-1] * milOfDay
day = timeStamp / milOfDay
timeStamp -= day * milOfDay
hour = timeStamp / milOfHour
timeStamp -= hour * milOfHour
minute = timeStamp / 60000
timeStamp -= minute * 60000
second = timeStamp / 1000
milliSecond = timeStamp % 1000
*dateArry[0] = year
*dateArry[1] = month
*dateArry[2] = day
*dateArry[3] = hour
*dateArry[4] = minute
*dateArry[5] = second
*dateArry[6] = milliSecond
}
//将64位时间戳转化为时间字符串
void transformToDateString(time64 timeStamp ,char *dateString)
{
time64 year ,month ,day ,hour ,minute ,second ,milliSecond
time64 *intp[] = {&year ,&month ,&day ,&hour ,&minute ,&second ,&milliSecond }
transformToDate(timeStamp ,intp)
sprintf(dateString ,"%.4I64d-%.2I64d-%.2I64d %.2I64d:%.2I64d:%.2I64d:%.3I64d" ,
year ,month ,day+1 ,hour ,minute ,second ,milliSecond )
}
int main()
{
time64 time
char date[256]
scanf("%lld",&time)
transformToDateString(time,date)
printf("date= %s\n",date)
return 0
}
示例运行结果：
63510000999140
date= 2013-07-21 10:56:39:140
