#include <stdio.h>
#include <time.h>  
#include <stdlib.h>  
#include <string.h>  


time_t  ConvertStrtoTime(char * szTime)
{
    tm tm_;  
    time_t t_;  
    strptime(szTime, "%Y-%m-%d %H:%M:%S", &tm_); //將字串轉換為tm時間  
    tm_.tm_isdst = -1;  
    t_  = mktime(&tm_);                         //將tm時間轉換為秒時間  
    //t_ += 3600;                                //秒數加3600 
    return t_;
	
}

int main()
{
 char szTime[128] = {0};
        char szBuf[64] = {0};
        time_t t; 
        tm  sttm;
        strcpy(szTime, "2015-09-01 17:57:47");
        t = ConvertStrtoTime(szTime);
        printf("t:%ld \n", t);

        sttm = *localtime(&t);//輸出時間  
        strftime(szBuf, 64, "%Y-%m-%d %H:%M:%S", &sttm);  

        printf("szBuf:%s \n", szBuf);
 return 0;
}