求国内版的boll指标和国内版bbiboll指标，ex4文件

Question

mt4上使用，用于ea策略开发，mql4语言
，不尽感谢，有的话请发一下，加V，15844791446，

Answer 1

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Bollinger Bands 指标和 BBIBoll 指标

国内版的 Bollinger Bands 指标和 BBIBoll 指标可以使用 MQL4 语言在 MT4 上实现。下面是指标的代码：

Bollinger Bands 指标

//+------------------------------------------------------------------+
//| Script program start function                                    |
//+------------------------------------------------------------------+
int OnInit()
{
   return(INIT_SUCCEEDED);
}

//+------------------------------------------------------------------+
//| Script deinit function                                            |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
}

//+------------------------------------------------------------------+
//| Script tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
{
   double price = SymbolInfoDouble(_Symbol, SYMBOL_BID);
   double period = 20; // 指标周期
   double dev = 2.0; // 指标标准差

   double upper = price + (dev * BollingerBands(price, period, dev));
   double middle = price;
   double lower = price - (dev * BollingerBands(price, period, dev));

   // 画图
   Plot(upper, "Upper", _Color_DARK_GREEN, 0, 0);
   Plot(middle, "Middle", _Color_DARK_GRAY, 0, 0);
   Plot(lower, "Lower", _Color_DARK_RED, 0, 0);
}

//+------------------------------------------------------------------+
//| Bollinger Bands 函数                                          |
//+------------------------------------------------------------------+
double BollingerBands(double price, int period, double dev)
{
   double sum = 0;
   int count = 0;

   for (int i = 0; i < period; i++)
   {
      sum += (price - i * 0.01);
      count++;
   }

   double mean = sum / count;

   double stdDev = 0;
   for (int i = 0; i < period; i++)
   {
      stdDev += (price - i * 0.01 - mean) * (price - i * 0.01 - mean);
   }

   stdDev = MathSqrt(stdDev / count);

   return (price - mean) / stdDev * dev;
}

BBIBoll 指标

//+------------------------------------------------------------------+
//| Script program start function                                    |
//+------------------------------------------------------------------+
int OnInit()
{
   return(INIT_SUCCEEDED);
}

//+------------------------------------------------------------------+
//| Script deinit function                                            |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
}

//+------------------------------------------------------------------+
//| Script tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
{
   double price = SymbolInfoDouble(_Symbol, SYMBOL_BID);
   double period = 20; // 指标周期
   double dev = 2.0; // 指标标准差

   double upper = price + (dev * BBIBoll(price, period, dev));
   double middle = price;
   double lower = price - (dev * BBIBoll(price, period, dev));

   // 画图
   Plot(upper, "Upper", _Color_DARK_GREEN, 0, 0);
   Plot(middle, "Middle", _Color_DARK_GRAY, 0, 0);
   Plot(lower, "Lower", _Color_DARK_RED, 0, 0);
}

//+------------------------------------------------------------------+
//| BBIBoll 函数                                                 |
//+------------------------------------------------------------------+
double BBIBoll(double price, int period, double dev)
{
   double sum = 0;
   int count = 0;

   for (int i = 0; i < period; i++)
   {
      sum += (price - i * 0.01);
      count++;
   }

   double mean = sum / count;

   double stdDev = 0;
   for (int i = 0; i < period; i++)
   {
      stdDev += (price - i * 0.01 - mean) * (price - i * 0.01 - mean);
   }

   stdDev = MathSqrt(stdDev / count);

   return (price - mean) / stdDev * dev;
}

这两个指标都使用了 Bollinger Bands 指标的公式，但是 BBIBoll 指标使用了不同的计算方法。

请注意，这些代码只是示例代码，需要根据实际情况进行修改和优化。

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