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用一个简单的EA说明编辑过程
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 本例子
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
//MarketInfo(Symbol(),MODE_MINLOT); 相关信息
//MarketInfo(Symbol(),MODE_MAXLOT);
//MarketInfo(Symbol(),MODE_LOTSTEP);
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()
{
if (OrdersTotal( ) 0 )
{
for(i=OrdersTotal()-1;i 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 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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