1、时间转字符串函数size_t strftime( char *strDest, size_t maxsize, const char *format, const struct tm *timeptr );2、字符串转时间函数char *strptime(const char *s, const char *format, struct tm *tm);#include 
     
      #include 
      
       int main(){        struct tm tm_time;        strptime("2010-11-15 10:39:30", "%Y-%m-%d %H:%M:%S", &tm_time);        printf("%ld/n", mktime(&tm_time));        printf("-------------------------------------/n");        char szBuf[256] = {
   0};        time_t timer = time(NULL);        strftime(szBuf, sizeof(szBuf), "%Y-%m-%d %H:%M:%S", localtime(&timer));        printf("%s/n", szBuf);        return 0;}