MQL：资金管理语句块

以可承受损失资产百分比计算仓位大小：

extern double EquityPercent = 2
extern double StopLoss = 50
#计算风险资金额
double RiskAmount = AccountEquity()*(EquityPercent/100)
#计算指订货币的每点价值
double TickValue = MarketInfo(Symbol(),MODE_TICKVALUE);
if(Point == 0.001//Point == 0.00001) TickValue *= 10;
#计算仓位大小
double myLots = (RiskAmount/StopLoss)/TickValue