C將char []轉換爲時間戳;

Question

我有char date [] =「2011-04-01」;它如何轉換爲C或C++中的時間戳？

Answer 1

試試這個：

char date[] = "2011-04-01"; 
date[4] = date[7] = '\0'; 
struct tm tmdate = {0}; 
tmdate.tm_year = atoi(&date[0]) - 1900; 
tmdate.tm_mon = atoi(&date[5]) - 1; 
tmdate.tm_mday = atoi(&date[8]); 
time_t t = mktime(&tmdate); 

Answer 2

警告：strptime是POSIX - 功能（可能無法在操作系統 「視窗」 平臺可通過time.h中）。

#include <time.h> 

struct tm time; 
strptime("2011-04-01", "%Y-%m-%d", &time); 
time_t loctime = mktime(&time); // timestamp in current timezone 
time_t gmttime = timegm(&time); // timestamp in GMT