一周前,开始学习EA,看的第一个贴就是论坛里置顶的520FX ? 【MT4编程交流】 ? ea简明教程收集以及修改贴(delmo 2009-8-10 00:07发表)
贴子里引了牛版的一个EA为例,我就原样抄入了MT4,代码如下:
- //+-----------------------------------------------------------------+
- //| Designed by bull, China |
- //| Copyright 2007, bull |
- //| bbs.520fx.com |
- //+-----------------------------------------------------------------+
- #property copyright \"Copyright 2007 , bull, China.\"
- #property link \"bbs.520fx.com\"
- #define MAGICMA 2007
- extern int whichmethod = 1; //1~4 种下单方式 1 仅开仓, 2 有止损无止赢, 3 有止赢无止损, 4 有止赢也有止损
- extern double TakeProfit = 100; //止赢点数
- extern double StopLoss = 20; //止损点数
- extern double MaximumRisk = 0.3; //资金控制,控制下单量
- extern double TrailingStop = 25; //跟踪止赢点数设置
- extern int maxOpen = 3; //最多开仓次数限制
- extern int maxLots = 5; //最多单仓持仓量限制
- extern int bb = 0; //非零就允许跟踪止赢
- extern double MATrendPeriod = 26;//使用26均线 开仓条件参数
- int i, p2, xxx, p1, res;
- double Lots;
- datetime lasttime; //时间控制, 仅当一个时间周期完成才检查条件
- int init() //初始化
- {
- Lots = 1;
- lasttime = NULL;
- return(0);
- }
- int deinit() { return(0); } //反初始化
- //主程序
- int start()
- {
- CheckForOpen(); //开仓 平仓 条件检查 和操作
- if (bb>0) CTP(); //跟踪止赢
- return(0);
- }
- //+------下面是各子程序--------------------------------------------+
- double LotsOptimized() //确定下单量,开仓调用 资金控制
- {
- double lot=Lots;
- int orders=HistoryTotal(); // history orders total
- int losses=0; // number of losses orders without a break
- lot=NormalizeDouble(MaximumRisk * AccountBalance()/AccountLeverage(),1); //开仓量计算
- if(lotmaxLots) lot=maxLots;
- return(lot);
- }
-
- //平仓持有的买单
- void CloseBuy()
- {
- //int OrdersTotal( ) 返回挂单总数
- if (OrdersTotal( ) > 0 )
- {
- for(i=OrdersTotal()-1;i>=0;i--)
- {
- if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES)==false) break;
- if(OrderType()==OP_BUY)
- {
- OrderClose(OrderTicket(),OrderLots(),Bid,3,White);
- Sleep(5000);
- }
- }
- }
- }
- //平仓持有的卖单
- void CloseSell()
- {
- if (OrdersTotal( ) > 0 )
- {
- for(i=OrdersTotal()-1;i>=0;i--)
- {
- if(OrderSelect(i,SELECT_BY_POS,MODE_TRADES)==false) break;
- if(OrderType()==OP_SELL)
- {
- OrderClose(OrderTicket(),OrderLots(),Ask,3,White);
- Sleep(5000);
- }
- }
- }
- }
- //判断是否买或卖或平仓
- int buyorsell() //在这个函数计算设置你的交易信号 这里使用MACD 和MA 做例子
- {
- double MacdCurrent, MacdPrevious, SignalCurrent;
- double SignalPrevious, MaCurrent, MaPrevious;
- MacdCurrent=iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_MAIN,0);
- MacdPrevious=iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_MAIN,1);
- SignalCurrent=iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_SIGNAL,0);
- SignalPrevious=iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_SIGNAL,1);
-
- MaCurrent=iMA(NULL,0,MATrendPeriod,0,MODE_EMA,PRICE_CLOSE,0);
- MaPrevious=iMA(NULL,0,MATrendPeriod,0,MODE_EMA,PRICE_CLOSE,1);
-
- if(MacdCurrentSignalCurrent && MacdPreviousMaPrevious)
- return (1); // 买 Ma在上升,Macd在0线上,并且两线上交叉
- if(MacdCurrent>0 && MacdCurrentSignalPrevious && MaCurrent 19 ) return; //周五晚11点后不做
- }
- if (OrdersTotal( ) >= maxOpen) return ;
- //如果已持有开仓次数达到最大,不做
- if (nowbuyorsell==0) return; //不交易
- TradeOK(); //去下单交易
- }
- void TradeOK() //去下单交易
- {
- int error ;
- if (nowbuyorsell == 1) //买
- {
- switch (whichmethod)
- {
- case 1: res=OrderSend(Symbol(),OP_BUY,LotsOptimized(),Ask,3,0,0,\"\",MAGICMA,0,Blue);break;
- case 2: res=OrderSend(Symbol(),OP_BUY,LotsOptimized(),Ask,3,Ask-StopLoss*Point,0,\"\",MAGICMA,0,Blue); break;
- case 3: res=OrderSend(Symbol(),OP_BUY,LotsOptimized(),Ask,3,0,Ask+TakeProfit*Point,\"\",MAGICMA,0,Blue);break;
- case 4: res=OrderSend(Symbol(),OP_BUY,LotsOptimized(),Ask,3,Ask-StopLoss*Point,Ask+TakeProfit*Point,\"\",MAGICMA,0,Blue);break;
- default : res=OrderSend(Symbol(),OP_BUY,LotsOptimized(),Ask,3,0,0,\"\",MAGICMA,0,Blue);break;
- }
- if (res (TrailingStop * MarketInfo(OrderSymbol(), MODE_POINT))) //开仓价格 当前止损和当前价格比较判断是否要修改跟踪止赢设置
- {
- if ((OrderStopLoss()) > (Ask + TrailingStop * MarketInfo(OrderSymbol(), MODE_POINT)))
- {
- bs = OrderModify(OrderTicket(), OrderOpenPrice(),
- Ask + TrailingStop * MarketInfo(OrderSymbol(), MODE_POINT), OrderTakeProfit(),0, Tan);
- }
- }
- }
- }
- }
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