MQL5参考标准程序库交易类CAccountInfoMarginModeDescription LoginTradeModeTradeModeDescriptionLeverageStopoutModeStopoutModeDescriptionMarginModeMarginModeDescriptionTradeAllowedTradeExpertLimitOrdersBalanceCreditProfitEquityMarginFreeMarginMarginLevelMarginCallMarginStopOutNameServerCurrencyCompanyInfoIntegerInfoDoubleInfoStringOrderProfitCheckMarginCheckFreeMarginCheckMaxLotCheck MarginModeDescription 获取预付款计算模式为字符串。 string MarginModeDescription() const 返回值 预付款计算模式为字符串。 MarginMode TradeAllowed