/*backtest
start: 2021-06-01 00:00:00
end: 2021-09-22 00:00:00
period: 5m
basePeriod: 1m
exchanges: [{"eid":"Futures_OKCoin","currency":"BTC_USD"}]
*/

// 定义对象
var e = exchange
e.SetContractType('swap')
var LastBarTime = 0