public void tradeAsync(OkexCoinType commodity, OkexCoinType currency,
OkexStockTradeType tradeType, double price, double amount,
HttpAsyncReq.ResponseCallback callback)
{
string c0 = OkexDefValueConvert.getCoinName(commodity);
string c1 = OkexDefValueConvert.getCoinName(currency);
string symbol = c0 + "_" + c1;
string strType = OkexDefValueConvert.getStockTradeTypeStr(tradeType);
postRequest.tradeAsync(symbol, strType, price.ToString(), amount.ToString(), callback);
}
