docs: def loaddate(self):
      ''' 載入檔案
          檔案依據 http://www.twse.com.tw/ch/trading/trading_days.php
      '''
      ld = csv.reader(open('./%s/opendate.csv' % _CSVFILEPATH, 'r'))
      re = {}
      re['close'] = []
      re['open'] = []
  
      for i in ld:
        ''' 0 = 休市, 1 = 開市 '''
        if i[1] == '0':
          re['close'] += [datetime.strptime(i[0],'%Y/%m/%d').date()]
        elif i[1] == '1':
          re['open'] += [datetime.strptime(i[0],'%Y/%m/%d').date()]
        else:
          pass
      return re