关于MT5 Symbol()加入循环之后取得的结果失真问题

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dvarlife 2023.04.06 05:36

在函数中加入Symbol()后结果失真

下面是代码：假设取一个多头总手数

int BuyLots()

{

int Lotsz=0;

for(int i=0; i<PositionsTotal(); i++)

if(PositionSelectByTicket(PositionGetTicket(i)))

if(PositionGetInteger(POSITION_TYPE)==POSITION_TYPE_BUY)

if(PositionGetSymbol(POSITION_SYMBOL)==Symbol() && PositionGetInteger(POSITION_MAGIC) == EXPERT_MAGIC && PositionGetString(POSITION_COMMENT) == EXPERT_COMMENT)

Lotsz+= PositionGetDouble(POSITION_VOLUME);

return(Lotsz);

}

如此写的话，计算出来的结果失真；

如果这样写

int BuyLots()

{

int Lotsz=0;

for(int i=0; i<PositionsTotal(); i++)

if(PositionSelectByTicket(PositionGetTicket(i)))

if(PositionGetInteger(POSITION_TYPE)==POSITION_TYPE_BUY)

if(PositionGetInteger(POSITION_MAGIC) == EXPERT_MAGIC && PositionGetString(POSITION_COMMENT) == EXPERT_COMMENT)

Lotsz+= PositionGetDouble(POSITION_VOLUME);

return(Lotsz);

}

结果又是正常的,哪怕如此写结果也是一样

int BuyLots()

{

int Lotsz=0;

for(int i=0; i<PositionsTotal(); i++)

if(PositionSelectByTicket(PositionGetTicket(i)))

if(PositionGetInteger(POSITION_TYPE)==POSITION_TYPE_BUY)

if(PositionGetSymbol(POSITION_SYMBOL)==Symbol() && PositionGetInteger(POSITION_MAGIC) == EXPERT_MAGIC && PositionGetString(POSITION_COMMENT) == EXPERT_COMMENT)

Lotsz= PositionGetDouble(POSITION_VOLUME) + Lotsz;

return(Lotsz);

}