2017/3/19
一.
1.MT5和MT4的对比 （结论MT5好很多）
https://www.metatrader5.com/zh/brokers/comparison-mt5-mt4

image.png

1.limit是亏损方向
buy limit
sell limit

2.stop是盈利方向
buy stop
sell stop

3.buy stop limit 先突破盈利方向 在回调
sell stop limit

二.代码格式化 ctrl+,
以下其实没什么用【 tab 选择代码块右移， shift+tab选择代码块左右】
三.常用入门接口

//|                                                       Common.mqh
#define yes true
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void pd(double num)
  {
   printf(DoubleToString(num,Digits()));
  }

//|                                                     1.常用入门接口.mq5
#include <..\Include\Common.mqh>

datetime openTime;
//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {
//---

//---
   return(INIT_SUCCEEDED);
  }
//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {
//---

  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {
//---
   getMqlTick();
   getMqlRates();
   getIndicatorTest();
  }
//+------------------------------------------------------------------+

void getMqlTick()
  {
//double a = Ask;
   MqlTick result[];
   ArraySetAsSeries(result,yes);
   CopyTicks(NULL,result,COPY_TICKS_ALL,0,1);
   pd(result[0].ask);//bid ask

  }
//+------------------------------------------------------------------+
void getMqlRates()
  {
//double o1 = Open[0];
   MqlRates result[];
   ArraySetAsSeries(result,yes);
   CopyRates(NULL,0,0,10,result);
   pd(result[0].open); //high open low close
  }
//+------------------------------------------------------------------+
void getIndicatorTest()
  {
   double adx1[];
   double adx2[];
   double adx3[];
   ArraySetAsSeries(adx1,yes);
   ArraySetAsSeries(adx2,yes);
   ArraySetAsSeries(adx3,yes);
   int adx_h=iADX(NULL,0,14);
   CopyBuffer(adx_h,0,0,10,adx1);
   CopyBuffer(adx_h,1,0,10,adx2);
   CopyBuffer(adx_h,2,0,10,adx3);
   pd(adx1[0]);
   pd(adx2[0]);
   pd(adx3[0]);
  }
//+------------------------------------------------------------------+
//|                                                                  |
//+------------------------------------------------------------------+
void sendOrderOneTime()
  {
//获取时间
   datetime t[];
   ArraySetAsSeries(t,yes);
   CopyTime(NULL,0,0,2,t);
//一个k线只下一个订单
   if(openTime!=t[0])
     {
      sendOrder();
      openTime=t[0];
     }
  }
//+------------------------------------------------------------------+
void sendOrder()
  {
   MqlTradeRequest request={0};
   MqlTradeResult result={0};
//--- 请求的参数
   request.action=TRADE_ACTION_DEAL;                     // 交易操作类型
   request.symbol=Symbol();                              // 交易品种
   request.volume=0.1;                                   // 0.1手交易量
   request.type=ORDER_TYPE_BUY;                        // 订单类型
   request.price=SymbolInfoDouble(Symbol(),SYMBOL_ASK); // 持仓价格
   request.deviation=5;                                     // 允许价格偏差
   request.magic=123456;                          // 订单幻数

   if(OrderSend(request,result))
     {
      PrintFormat("retcode=%u  deal=%I64u  order=%I64u",result.retcode,result.deal,result.order);
     }
   else
     {
      PrintFormat("OrderSend error %d",GetLastError());     // 如果不能发送请求，输出错误代码
     }
  }
//+------------------------------------------------------------------+
//遍历持仓单
void traversePosition()
  {
   int pt=PositionsTotal();
   for(int i=0;i<pt;i++)
     {
      if(PositionGetTicket(i)>0)
        {
         //do something
         double openPrice=PositionGetDouble(POSITION_PRICE_OPEN);
        }
     }
  }
//+------------------------------------------------------------------+
//一般用不到
void testPositionSelect()
  {
   if(PositionSelect(Symbol())==true)
     {
      //do something
      double openPrice=PositionGetDouble(POSITION_PRICE_OPEN);
     }
  }
//+------------------------------------------------------------------+
//遍历挂单
void traversePendingOrder()
  {
   int ot=OrdersTotal();
   for(int i=0;i<ot;i++)
     {
      if(OrderGetTicket(i)>0)
        {
         //do something
         double orderPriceOpen=OrderGetDouble(ORDER_PRICE_OPEN);
        }
     }
  }
//+------------------------------------------------------------------+
void testOrderSelect()
  {
   if(OrderSelect(1234)==true)//根据订单号选择
     {
      //do something
      double orderPriceOpen=OrderGetDouble(ORDER_PRICE_OPEN);
     }
  }
//+------------------------------------------------------------------+

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