def loadKData(self, market, code, ktype, start_ix, end_ix, out_buffer):
"""
【重载接口】（必须）按指定的位置[start_ix, end_ix)读取K线数据至out_buffer
:param str market: 市场标识
:param str code: 证券代码
:param KQuery.KType ktype: K线类型
:param int start_ix: 起始位置
:param int end_ix: 结束位置
:param KRecordListPtr out_buffer: 传入的数据缓存，读取数据后使用
out_buffer.append(krecord) 加入数据
"""
if start_ix >= end_ix or start_ix <0 or end_ix <0:
return
data = self._get_bars(market, code, ktype)
if len(data) < start_ix:
return
total = end_ix if end_ix < len(data) else len(data)
for i in range(start_ix, total):
record = KRecord()
record.datetime = Datetime(data[i].get('datetime'))
record.openPrice = data[i].get('open')
record.highPrice = data[i].get('high')
record.lowPrice = data[i].get('low')
record.closePrice = data[i].get('close')
record.transAmount = data[i].get('amount')
record.transCount = data[i].get('vol')
out_buffer.append(record)
def getKRecord(self, market, code, pos, ktype):
"""
【重载接口】（必须）获取指定位置的K线记录
:param str market: 市场标识
:param str code: 证券代码
:param int pos: 指定位置（大于等于0）
:param KQuery.KType ktype: K线类型
"""
record = KRecord()
if pos < 0:
return record
data = self._get_bars(market, code, ktype)
if data is None:
return record
if pos < len(data):
record.datetime = Datetime(data[pos].get('datetime'))
record.openPrice = data[pos].get('open')
record.highPrice = data[pos].get('high')
record.lowPrice = data[pos].get('low')
record.closePrice = data[pos].get('close')
record.transAmount = data[pos].get('amount')
record.transCount = data[pos].get('vol')
return record
