records = exchange.GetRecords(PERIOD_M15); if (records && records.length > 7) { var ma7 = TA.MA(records, 7); } if (records && records.length > 30) { var ma30 = TA.MA(records, 30); }
为什么行情数据图表里,只显示写在上面的那条均线,ma30的没有显示呢?