请教BULL，关于EA的问题！！！！

//+------------------------------------------------------------------+
  //| This MQL is generated by Expert Advisor Builder                |
  //|             http://sufx.core.t3-ism.net/ExpertAdvisorBuilder/ |
  //|                                                                |
  //|  In no event will author be liable for any damages whatsoever. |
  //|                   Use at your own risk.                      |
  //|                                                                |
  //+------------------- DO NOT REMOVE THIS HEADER --------------------+

  #define SIGNAL_NONE 0
  #define SIGNAL_BUY 1
  #define SIGNAL_SELL  2
  #define SIGNAL_CLOSEBUY 3
  #define SIGNAL_CLOSESELL 4

  #property copyright \"Expert Advisor Builder\"
  #property link    \"http://sufx.core.t3-ism.net/ExpertAdvisorBuilder/\"

  extern int MagicNumber = 0;
  extern bool SignalMail = False;
  extern bool EachTickMode = True;
  extern double Lots = 1.0;
  extern int Slippage = 3;
  extern bool UseStopLoss = True;
  extern int StopLoss = 30;
  extern bool UseTakeProfit = True;
  extern int TakeProfit = 60;
  extern bool UseTrailingStop = True;
  extern int TrailingStop = 15;

  int BarCount;
  int Current;
  bool TickCheck = False;
  //+------------------------------------------------------------------+
  //| expert initialization function                                  |
  //+------------------------------------------------------------------+
  int init() {
   BarCount = Bars;

   if (EachTickMode) Current = 0; else Current = 1;

   return(0);
  }
  //+------------------------------------------------------------------+
  //| expert deinitialization function                               |
  //+------------------------------------------------------------------+
  int deinit() {
   return(0);
  }
  //+------------------------------------------------------------------+
  //| expert start function                                           |
  //+------------------------------------------------------------------+
  int start() {
   int Order = SIGNAL_NONE;
   int Total, Ticket;
   double StopLossLevel, TakeProfitLevel;



   if (EachTickMode && Bars != BarCount) TickCheck = False;
   Total = OrdersTotal();
   Order = SIGNAL_NONE;

   //+------------------------------------------------------------------+
   //| Variable Begin                                                 |
   //+------------------------------------------------------------------+


  double Buy1_1 = iStochastic(NULL, 0, 5, 3, 3, MODE_SMA, 0, MODE_MAIN, Current + 0);
  double Buy1_2 = iStochastic(NULL, 0, 5, 3, 3, MODE_SMA, 0, MODE_SIGNAL, Current + 0);

  double Sell1_1 = iStochastic(NULL, 0, 5, 3, 3, MODE_SMA, 0, MODE_MAIN, Current + 0);
  double Sell1_2 = iStochastic(NULL, 0, 5, 3, 3, MODE_SMA, 0, MODE_SIGNAL, Current + 0);




   //+------------------------------------------------------------------+
   //| Variable End                                                    |
   //+------------------------------------------------------------------+

   //Check position
   bool IsTrade = False;

   for (int i = 0; i < Total; i ++) {
      OrderSelect(i, SELECT_BY_POS, MODE_TRADES);
      if(OrderType()  0) {
               if(Bid - OrderOpenPrice() > Point * TrailingStop) {
                  if(OrderStopLoss() < Bid - Point * TrailingStop) {
                     OrderModify(OrderTicket(), OrderOpenPrice(), Bid - Point * TrailingStop, OrderTakeProfit(), 0, MediumSeaGreen);
                     if (!EachTickMode) BarCount = Bars;
                     continue;
                  }
               }
            }
         } else {
            //Close

            //+------------------------------------------------------------------+
            //| Signal Begin(Exit Sell)                                        |
            //+------------------------------------------------------------------+



            //+------------------------------------------------------------------+
            //| Signal End(Exit Sell)                                           |
            //+------------------------------------------------------------------+

            if (Order == SIGNAL_CLOSESELL && ((EachTickMode && !TickCheck) || (!EachTickMode && (Bars != BarCount)))) {
               OrderClose(OrderTicket(), OrderLots(), Ask, Slippage, DarkOrange);
               if (SignalMail) SendMail(\"[Signal Alert]\", \"[\" + Symbol() + \"] \" + DoubleToStr(Ask, Digits) + \" Close Sell\");
               if (!EachTickMode) BarCount = Bars;
               IsTrade = False;
               continue;
            }
            //Trailing stop
            if(UseTrailingStop && TrailingStop > 0) {
               if((OrderOpenPrice() - Ask) > (Point * TrailingStop)) {
                  if((OrderStopLoss() > (Ask + Point * TrailingStop)) || (OrderStopLoss() == 0)) {
                     OrderModify(OrderTicket(), OrderOpenPrice(), Ask + Point * TrailingStop, OrderTakeProfit(), 0, DarkOrange);
                     if (!EachTickMode) BarCount = Bars;
                     continue;
                  }
               }
            }
         }
      }
   }

   //+------------------------------------------------------------------+
   //| Signal Begin(Entry)                                           |
   //+------------------------------------------------------------------+

   if (Buy1_1 > Buy1_2) Order = SIGNAL_BUY;

   if (Sell1_1 < Sell1_2) Order = SIGNAL_SELL;


   //+------------------------------------------------------------------+
   //| Signal End                                                    |
   //+------------------------------------------------------------------+

   //Buy
   if (Order == SIGNAL_BUY && ((EachTickMode && !TickCheck) || (!EachTickMode && (Bars != BarCount)))) {
      if(!IsTrade) {
         //Check free margin
         if (AccountFreeMargin() < (1000 * Lots)) {
            Print(\"We have no money. Free Margin = \", AccountFreeMargin());
            return(0);
         }

         if (UseStopLoss) StopLossLevel = Ask - StopLoss * Point; else StopLossLevel = 0.0;
         if (UseTakeProfit) TakeProfitLevel = Ask + TakeProfit * Point; else TakeProfitLevel = 0.0;

         Ticket = OrderSend(Symbol(), OP_BUY, Lots, Ask, Slippage, StopLossLevel, TakeProfitLevel, \"Buy(#\" + MagicNumber + \")\", MagicNumber, 0, DodgerBlue);
         if(Ticket > 0) {
            if (OrderSelect(Ticket, SELECT_BY_TICKET, MODE_TRADES)) {
                              Print(\"BUY order opened : \", OrderOpenPrice());
               if (SignalMail) SendMail(\"[Signal Alert]\", \"[\" + Symbol() + \"] \" + DoubleToStr(Ask, Digits) + \" Open Buy\");
                        } else {
                              Print(\"Error opening BUY order : \", GetLastError());
                        }
         }
         if (EachTickMode) TickCheck = True;
         if (!EachTickMode) BarCount = Bars;
         return(0);
      }
   }

   //Sell
   if (Order == SIGNAL_SELL && ((EachTickMode && !TickCheck) || (!EachTickMode && (Bars != BarCount)))) {
      if(!IsTrade) {
         //Check free margin
         if (AccountFreeMargin() < (1000 * Lots)) {
            Print(\"We have no money. Free Margin = \", AccountFreeMargin());
            return(0);
         }

         if (UseStopLoss) StopLossLevel = Bid + StopLoss * Point; else StopLossLevel = 0.0;
         if (UseTakeProfit) TakeProfitLevel = Bid - TakeProfit * Point; else TakeProfitLevel = 0.0;

         Ticket = OrderSend(Symbol(), OP_SELL, Lots, Bid, Slippage, StopLossLevel, TakeProfitLevel, \"Sell(#\" + MagicNumber + \")\", MagicNumber, 0, DeepPink);
         if(Ticket > 0) {
            if (OrderSelect(Ticket, SELECT_BY_TICKET, MODE_TRADES)) {
                              Print(\"SELL order opened : \", OrderOpenPrice());
               if (SignalMail) SendMail(\"[Signal Alert]\", \"[\" + Symbol() + \"] \" + DoubleToStr(Bid, Digits) + \" Open Sell\");
                        } else {
                              Print(\"Error opening SELL order : \", GetLastError());
                        }
         }
         if (EachTickMode) TickCheck = True;
         if (!EachTickMode) BarCount = Bars;
         return(0);
      }
   }

   if (!EachTickMode) BarCount = Bars;

   return(0);
  }
  //+------------------------------------------------------------------+



  我的原意是当KD中的K线大于D线的交叉点时，就空，小于就多，但是出来的效果确是K大于D线时这个空间他就多，，，我不知道该如何来确定当K大于D时这个点。。。
  还有就是这个EA一次只能下一次，平了才能接着再下1次单，才练习着做，有很多东西要学，望BULL能指正。。谢谢。。

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