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MT4自带的EA怎么加上止赢止损设置 [复制链接]

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离线myto
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只看楼主 倒序阅读 使用道具 楼主  发表于: 2011-12-06
下面是MT4软件上面自带的系统Moving Average，怎么在这个系统上加上止赢止损设置呢？？ oWL_Hh%-f`  
Hc =QSP  
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  1. //+------------------------------------------------------------------+
  2. //|                                               Moving Average.mq4 |
  3. //|                      Copyright ?2005, MetaQuotes Software Corp. |
  4. //|                                       http://www.metaquotes.net/ |
  5. //+------------------------------------------------------------------+
  6. #define MAGICMA  20050610
  8. extern double Lots               = 0.1;
  9. extern double MaximumRisk        = 0.02;
  10. extern double DecreaseFactor     = 3;
  11. extern double MovingPeriod       = 12;
  12. extern double MovingShift        = 6;
  14. //+------------------------------------------------------------------+
  15. //| Calculate open positions                                         |
  16. //+------------------------------------------------------------------+
  17. int CalculateCurrentOrders(string symbol)
  18.   {
  19.    int buys=0,sells=0;
  20. //----
  21.    for(int i=0;i<OrdersTotal();i++)
  22.      {
  23.       if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES)==false) break;
  24.       if(OrderSymbol()==Symbol() && OrderMagicNumber()==MAGICMA)
  25.         {
  26.          if(OrderType()==OP_BUY)  buys++;
  27.          if(OrderType()==OP_SELL) sells++;
  28.         }
  29.      }
  30. //---- return orders volume
  31.    if(buys>0) return(buys);
  32.    else       return(-sells);
  33.   }
  34. //+------------------------------------------------------------------+
  35. //| Calculate optimal lot size                                       |
  36. //+------------------------------------------------------------------+
  37. double LotsOptimized()
  38.   {
  39.    double lot=Lots;
  40.    int    orders=HistoryTotal();     // history orders total
  41.    int    losses=0;                  // number of losses orders without a break
  42. //---- select lot size
  43.    lot=NormalizeDouble(AccountFreeMargin()*MaximumRisk/1000.0,1);
  44. //---- calcuulate number of losses orders without a break
  45.    if(DecreaseFactor>0)
  46.      {
  47.       for(int i=orders-1;i>=0;i--)
  48.         {
  49.          if(OrderSelect(i,SELECT_BY_POS,MODE_HISTORY)==false) { Print("Error in history!"); break; }
  50.          if(OrderSymbol()!=Symbol() || OrderType()>OP_SELL) continue;
  51.          //----
  52.          if(OrderProfit()>0) break;
  53.          if(OrderProfit()<0) losses++;
  54.         }
  55.       if(losses>1) lot=NormalizeDouble(lot-lot*losses/DecreaseFactor,1);
  56.      }
  57. //---- return lot size
  58.    if(lot<0.1) lot=0.1;
  59.    return(lot);
  60.   }
  61. //+------------------------------------------------------------------+
  62. //| Check for open order conditions                                  |
  63. //+------------------------------------------------------------------+
  64. void CheckForOpen()
  65.   {
  66.    double ma;
  67.    int    res;
  68. //---- go trading only for first tiks of new bar
  69.    if(Volume[0]>1) return;
  70. //---- get Moving Average
  71.    ma=iMA(NULL,0,MovingPeriod,MovingShift,MODE_SMA,PRICE_CLOSE,0);
  72. //---- sell conditions
  73.    if(Open[1]>ma && Close[1]<ma)  
  74.      {
  75.       res=OrderSend(Symbol(),OP_SELL,LotsOptimized(),Bid,3,0,0,"",MAGICMA,0,Red);
  76.       return;
  77.      }
  78. //---- buy conditions
  79.    if(Open[1]<ma && Close[1]>ma)  
  80.      {
  81.       res=OrderSend(Symbol(),OP_BUY,LotsOptimized(),Ask,3,0,0,"",MAGICMA,0,Blue);
  82.       return;
  83.      }
  84. //----
  85.   }
  86. //+------------------------------------------------------------------+
  87. //| Check for close order conditions                                 |
  88. //+------------------------------------------------------------------+
  89. void CheckForClose()
  90.   {
  91.    double ma;
  92. //---- go trading only for first tiks of new bar
  93.    if(Volume[0]>1) return;
  94. //---- get Moving Average
  95.    ma=iMA(NULL,0,MovingPeriod,MovingShift,MODE_SMA,PRICE_CLOSE,0);
  96. //----
  97.    for(int i=0;i<OrdersTotal();i++)
  98.      {
  99.       if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES)==false)        break;
  100.       if(OrderMagicNumber()!=MAGICMA || OrderSymbol()!=Symbol()) continue;
  101.       //---- check order type
  102.       if(OrderType()==OP_BUY)
  103.         {
  104.          if(Open[1]>ma && Close[1]<ma) OrderClose(OrderTicket(),OrderLots(),Bid,3,White);
  105.          break;
  106.         }
  107.       if(OrderType()==OP_SELL)
  108.         {
  109.          if(Open[1]<ma && Close[1]>ma) OrderClose(OrderTicket(),OrderLots(),Ask,3,White);
  110.          break;
  111.         }
  112.      }
  113. //----
  114.   }
  115. //+------------------------------------------------------------------+
  116. //| Start function                                                   |
  117. //+------------------------------------------------------------------+
  118. void start()
  119.   {
  120. //---- check for history and trading
  121.    if(Bars<100 || IsTradeAllowed()==false) return;
  122. //---- calculate open orders by current symbol
  123.    if(CalculateCurrentOrders(Symbol())==0) CheckForOpen();
  124.    else                                    CheckForClose();
  125. //----
  126.   }
  127. //+------------------------------------------------------------------+
 
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