年月日轉時間戳(2)

碰到一個需求,將字符串"20121231"日轉換爲時間戳,很簡單,但是經常碰到,記錄一下:

// 年月日轉時間戳
long GetTime(string strEndDate)
{
  string year = strEndDate.substr(0,4);
  string mon = strEndDate.substr(4,2);
  string day = strEndDate.substr(6,2);
  tm local; //本地時間
  local.tm_year = atoi(year.c_str()) -1900;
  local.tm_mon = atoi(mon.c_str()) - 1;
  local.tm_mday = atoi(day.c_str());
  local.tm_hour = 0;
  local.tm_min = 0;
  local.tm_sec = 0;

  long tmSec = mktime(&local);
  cout << tmSec << endl;
  return tmSec;
}