/*backtest
start: 2021-05-1 00:00:00
end: 2021-05-28 00:00:00
period: 1d
basePeriod: 1h
exchanges: [{"eid":"Futures_Binance","currency":"BTC_USDT"}]
args: [["OpType",1]]
*/

//各功能测试
exchange.SetContractType("swap") //合约设置
// exchange.SetCurrency("TRX_USDT");