MetaTrader編程入門

MetaTrader編程入門教程(0)

----指標文件構成

例1

//+--------------------------------------------------

//雙些線後是單行註釋，用於註解，自用說明。/*和*/包起來實現多行註釋，記錄自己的說明介紹，編程使用記錄等

//MQL4語言基本服從C語言的規則-----------註意目前MetaEditor處理不好多字節代碼，所以不要在代碼中使用中文和中文空格-------------+

//每個指標文件只是至少包括三個部分(1)property　和參數，數組聲明，(2)初始化函數nit(),　(3)主函數start()

//property　是各種說明信息

//最重要必須的是這三種，(1)說明指標將畫在價格窗口還是獨立的窗口

//(2)有多少個(1~7)儲存指標數據的數組，(3)說明對應將畫指標的繪畫顔色,編號1~7

#property indicator_chart_window

#property indicator_buffers 1

#property indicator_color1 Red

//---- 可設置的參數，可根據需要，由使用者設置

extern int MA_Period=13;

extern int MA_Shift=0;

extern int MA_Method=2;

extern int MA_Price = 6;

/* MA_Method =

MODE_SMA 0 Simple moving average,

MODE_EMA 1 Exponential moving average,

MODE_SMMA 2 Smoothed moving average,

MODE_LWMA 3 Linear weighted moving average.

*/

/* MA_Price =

PRICE_CLOSE 0 Close price.

PRICE_OPEN 1 Open price.

PRICE_HIGH 2 High price.

PRICE_LOW 3 Low price.

PRICE_MEDIAN 4 Median price, (high+low)/2.

PRICE_TYPICAL 5 Typical price, (high+low+close)/3.

PRICE_WEIGHTED 6 Weighted close price, (high+low+close+close)/4.

*/

//數組，儲存指標數據

double Buffer0[];

//| 初始化準備函數,裝入時調用一次

int init()

{

//-設置編號為０的線的線形等參數, 0~6,對應indicator_color1~7

SetIndexStyle(0,DRAW_LINE);

//---- 設置編號為０的線　與數組的對應關系, 0~6

SetIndexBuffer(0,Buffer0);

return(0);

}

int start() //指標計算主函數，每次計算調用

{

ma();

return(0);

}

//自定義函數，這裡只是直接使用庫函數實現MA, 若你自己計算，可設計任何指標

void ma()

{

int pos=Bars;

//Bars = Number of bars in the current chart.當前窗口中的蠟燭數

while(pos>=0)

{

Buffer0[pos]=iMA(NULL,0,MA_Period,MA_Shift,MA_Method,MA_Price,pos);

pos--;

}

}

//+--------------------------------------------------

例2

//+--------------------------------------------------

#property indicator_separate_window

#property indicator_buffers 7

#property indicator_color1 Red

#property indicator_color2 Yellow

#property indicator_color3 Blue

#property indicator_color4 Green

#property indicator_color5 Gray

#property indicator_color6 SkyBlue

#property indicator_color7 Tan

extern int MA_Period=13;

extern int MA_Shift=0;

extern int MA_Method=2;

extern int MA_Price = 6;

double Buffer0[];

double Buffer1[];

double Buffer2[];

double Buffer3[];

double Buffer4[];

double Buffer5[];

double Buffer6[];

//----

int init()

{

//-設置編號為０的線的線形等參數, 0~6,對應indicator_color1~7

SetIndexStyle(0,DRAW_LINE);

SetIndexStyle(1,DRAW_LINE);

SetIndexStyle(3,DRAW_LINE);

SetIndexStyle(4,DRAW_LINE);

SetIndexStyle(5,DRAW_LINE);

SetIndexStyle(6,DRAW_LINE);

//---- 設置編號為０的線　與數組的對應關系, 0~6

SetIndexBuffer(0,Buffer0);

SetIndexBuffer(1,Buffer1);

SetIndexBuffer(2,Buffer2);

SetIndexBuffer(3,Buffer3);

SetIndexBuffer(4,Buffer4);

SetIndexBuffer(5,Buffer5);

SetIndexBuffer(6,Buffer6);

return(0);

}

//

int start() //指標計算主函數，每次計算調用

{

ma();

ma1();

return(0);

}

void ma()

{

int pos=Bars;

while(pos>=0)

{

Buffer0[pos]=iMA(NULL,0,MA_Period,MA_Shift,MA_Method,MA_Price,pos);

Buffer1[pos]=iMA(NULL,0,MA_Period*2,MA_Shift,MA_Method,MA_Price,pos);

Buffer2[pos]=iMA(NULL,0,MA_Period*3,MA_Shift,MA_Method,MA_Price,pos);

pos--;

}

}

void ma1()

{

int pos=Bars;

while(pos>=0)

{

Buffer3[pos]=iMA(NULL,0,MA_Period*4,MA_Shift,MA_Method,MA_Price,pos);

Buffer4[pos]=iMA(NULL,0,MA_Period*5,MA_Shift,MA_Method,MA_Price,pos);

Buffer5[pos]=iMA(NULL,0,MA_Period*6,MA_Shift,MA_Method,MA_Price,pos);

Buffer6[pos]=iMA(NULL,0,MA_Period*7,MA_Shift,MA_Method,MA_Price,pos);

pos--;

}

}

MetaTrader編程入門(1)－－智能交易系統基礎

//+------------------------------------------------------------------+

//| Designed by OKwh, China |

//| Copyright 2006, OKwh |

//| |

//+------------------------------------------------------------------+

#property copyright "Copyright 2006, OKwh "

#property link ""

#define MAGICMA 200610011231

//+------------------------------------------------------------------+

//| expert initialization function |

//+------------------------------------------------------------------+

extern int whichmethod = 1; //1~4 種下單方式

extern double TakeProfit = 100;

extern double StopLoss = 20;

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