c++ - 如何只运行一个 if 语句并忽略 C++ 函数中的另一个？

Question

我是 C++ 的完全初学者，这段代码肯定做得很糟糕，但现在我试图为SierraChart编写一个简单的图表指标。在为山脉图表编写图表指标时，图表指标的所有代码都进入一个函数，我被困在这部分。

我只需要跑过去的最后一个方向。当前代码最终发生的情况是两者最终同时运行，因为两个条件最终都为真。

我已经为第二个方向尝试了 else if，并且在 if 块中尝试了一些布尔条件来尝试只运行最后一个方向，但这似乎并不能解决问题。

我该如何解决这个问题？

int &barCount = sc.GetPersistentInt(0);
float &longCount = sc.GetPersistentFloat(0);
float &shortCount = sc.GetPersistentFloat(0);
float Highest = sc.GetHighest(sc.BaseDataIn[SC_HIGH], barCount);
float Lowest = sc.GetLowest(sc.BaseDataIn[SC_LOW], barCount);
sc.MovingAverage(sc.BaseData[Input_MA1Price.GetInputDataIndex()], sc.Subgraph[2], Input_MA1Type.GetMovAvgType(), Input_MA1Length.GetInt());
sc.MovingAverage(sc.BaseData[Input_MA2Price.GetInputDataIndex()], sc.Subgraph[3], Input_MA2Type.GetMovAvgType(), Input_MA2Length.GetInt());
int direction = sc.CrossOver(sc.Subgraph[2], sc.Subgraph[3]);

if (direction == CROSS_FROM_BOTTOM)
    {
    barCount = 0;
    longCount = 0;
    }
    if (sc.GetBarHasClosedStatus(sc.Index) == BHCS_BAR_HAS_CLOSED)
    {
    barCount++;
    barCounter[sc.Index] = barCount;
    if (sc.BaseData[SC_HIGH][sc.Index] == Highest)
        {
        longCount = 0;
        }
        if (sc.BaseData[SC_HIGH][sc.Index] > sc.BaseData[SC_HIGH][sc.Index - 1] && sc.BaseData[SC_HIGH][sc.Index] < Highest)
        {
            longCount++;
            highPrice[sc.Index] = longCount;
            if (sc.BaseData[SC_HIGH][sc.Index - 2] < sc.BaseData[SC_HIGH][sc.Index - 1] && sc.BaseData[SC_HIGH][sc.Index] < Highest)
            {
    longCount--;
        highPrice[sc.Index] = 0;
            }
        }
    }

if (direction == CROSS_FROM_TOP)
    {
        barCount = 0;
        shortCount = 0;
    }
    if (sc.GetBarHasClosedStatus(sc.Index) == BHCS_BAR_HAS_CLOSED)
    {
        barCount++;
        barCounter[sc.Index] = barCount;
        if (sc.BaseData[SC_LOW][sc.Index] == Lowest)
        {
            shortCount = 0;
        }
        if (sc.BaseData[SC_LOW][sc.Index] < sc.BaseData[SC_LOW][sc.Index - 1] && sc.BaseData[SC_LOW][sc.Index] > Lowest)
        {
            shortCount++;
            lowPrice[sc.Index] = shortCount;
            if (sc.BaseData[SC_LOW][sc.Index - 2] > sc.BaseData[SC_LOW][sc.Index - 1] && sc.BaseData[SC_LOW][sc.Index] > Lowest)
            {
                shortCount--;
                lowPrice[sc.Index] = 0;
            }
        }
    }

标签： c++sierrachart

Answer 1

您的缩进与 if 语句的逻辑不匹配（并且 C++ 不关心缩进。尝试在每个主要（最外层）if 语句之后将整个缩进位包装在它们自己的大括号中。：

int &barCount = sc.GetPersistentInt(0);
float &longCount = sc.GetPersistentFloat(0);
float &shortCount = sc.GetPersistentFloat(0);
float Highest = sc.GetHighest(sc.BaseDataIn[SC_HIGH], barCount);
float Lowest = sc.GetLowest(sc.BaseDataIn[SC_LOW], barCount);
sc.MovingAverage(sc.BaseData[Input_MA1Price.GetInputDataIndex()], sc.Subgraph[2], Input_MA1Type.GetMovAvgType(), Input_MA1Length.GetInt());
sc.MovingAverage(sc.BaseData[Input_MA2Price.GetInputDataIndex()], sc.Subgraph[3], Input_MA2Type.GetMovAvgType(), Input_MA2Length.GetInt());
int direction = sc.CrossOver(sc.Subgraph[2], sc.Subgraph[3]);

if (direction == CROSS_FROM_BOTTOM)
{
    {
    barCount = 0;
    longCount = 0;
    }
    if (sc.GetBarHasClosedStatus(sc.Index) == BHCS_BAR_HAS_CLOSED)
    {
    barCount++;
    barCounter[sc.Index] = barCount;
    if (sc.BaseData[SC_HIGH][sc.Index] == Highest)
        {
        longCount = 0;
        }
        if (sc.BaseData[SC_HIGH][sc.Index] > sc.BaseData[SC_HIGH][sc.Index - 1] && sc.BaseData[SC_HIGH][sc.Index] < Highest)
        {
            longCount++;
            highPrice[sc.Index] = longCount;
            if (sc.BaseData[SC_HIGH][sc.Index - 2] < sc.BaseData[SC_HIGH][sc.Index - 1] && sc.BaseData[SC_HIGH][sc.Index] < Highest)
            {
    longCount--;
        highPrice[sc.Index] = 0;
            }
        }
    }
}

if (direction == CROSS_FROM_TOP)
{
    {
        barCount = 0;
        shortCount = 0;
    }
    if (sc.GetBarHasClosedStatus(sc.Index) == BHCS_BAR_HAS_CLOSED)
    {
        barCount++;
        barCounter[sc.Index] = barCount;
        if (sc.BaseData[SC_LOW][sc.Index] == Lowest)
        {
            shortCount = 0;
        }
        if (sc.BaseData[SC_LOW][sc.Index] < sc.BaseData[SC_LOW][sc.Index - 1] && sc.BaseData[SC_LOW][sc.Index] > Lowest)
        {
            shortCount++;
            lowPrice[sc.Index] = shortCount;
            if (sc.BaseData[SC_LOW][sc.Index - 2] > sc.BaseData[SC_LOW][sc.Index - 1] && sc.BaseData[SC_LOW][sc.Index] > Lowest)
            {
                shortCount--;
                lowPrice[sc.Index] = 0;
            }
        }
    }
}