void main() {
        Sleep(10000);
        Log(exchange.GetAccount());
        while (1) {
            if (exchange.IO("status") == 1) {
                exchange.SetContractType(Symbol);
                auto ticker = exchange.GetTicker();
                auto position = exchange.GetPosition();
                auto orders = exchange.GetOrders();
                auto records = exchange.GetRecords(xiao);
                auto records1 = exchange.GetRecords(da);
               auto a = records[records.size() - 1].Open- records[records.size() - 1].Close;