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以下代码处于一个函数中，我会多次调用，分别取出不同的周期的前30笔数据，但是当取30分钟线数据时(cyctype=3)经常取出来不对
set history = marketdata.GetHistoryData("510050","QQ",cyctype,30)

dataCount = history.Count

Application.MsgOut "cyctype:"&cyctype&":"&dataCount

if dataCount >= 30 then

for i=0 to dataCount - 1

dataClose(i) = history.Close(i)

d =history.Date(i)

if cyctype = 3 then

application.MsgOut time &" "&Date&",i="&i&","&dataClose(i)

end if

end

日志：

cyctype:3:30

9:48:20 2017/10/11,i=0,2.725

9:48:20 2017/10/11,i=1,2.722

9:48:20 2017/10/11,i=2,2.725

9:48:20 2017/10/11,i=3,2.722

9:48:20 2017/10/11,i=4,2.717

9:48:20 2017/10/11,i=5,2.716

9:48:20 2017/10/11,i=6,2.719

9:48:20 2017/10/11,i=7,2.726

9:48:20 2017/10/11,i=8,2.736

9:48:20 2017/10/11,i=9,2.734

9:48:20 2017/10/11,i=10,2.728

9:48:20 2017/10/11,i=11,2.731

9:48:20 2017/10/11,i=12,2.728

9:48:20 2017/10/11,i=13,2.726

9:48:20 2017/10/11,i=14,2.724

9:48:20 2017/10/11,i=15,2.721

9:48:20 2017/10/11,i=16,2.716

9:48:20 2017/10/11,i=17,2.719

9:48:20 2017/10/11,i=18,2.719

9:48:20 2017/10/11,i=19,2.728

9:48:20 2017/10/11,i=20,2.729

9:48:20 2017/10/11,i=21,2.728

9:48:20 2017/10/11,i=22,2.728

9:48:20 2017/10/11,i=23,2.728

9:48:20 2017/10/11,i=24,2.722

9:48:20 2017/10/11,i=25,2.723

9:48:20 2017/10/11,i=26,2.726

9:48:20 2017/10/11,i=27,2.73

9:48:20 2017/10/11,i=28,2.729

9:48:20 2017/10/11,i=29,2.747

主题：marketdata.GetHistoryData取出的数据有误