新手的问题
Please see How to insert MQL4 code into message.
这个例子是系统自带的吧？我没用过FxPro MetaTrader，但在一般的MetaTrader中我测试可以啊，别选“优化”和“复盘显示”试试。
收到,谢谢!!
问题解决了。一般的货币对买卖价数字是5位，而FxPro MetaTrader多一位，是6位，止盈/损由2位设为3位，即500和300就可以了。
本人新学炒汇，模拟阶段。为了省着点用老花眼，最近在试用MQL4平台智能交易系统，发现一个问题：
在 FxPro MetaTrader 的智能测试中运行 MACD Sample 程序，没有反应（好像在 MetaTrader - North Finance中可以用）。不知何故？
本人老土，10年前学了一点数据库，象头顶的毛发一样－－早丢光了，现在真是看不懂这程序。请各位指教。当然那位能直接改好并说明之，最好！这样就可以给我们多点看恢霾天空的时间，不然就得老盯着咫尺的屏幕。
先谢了！
程序拷贝如下：
/+------------------------------------------------------------------+//| MACD Sample.mq4 |
//| Copyright ?2005, MetaQuotes Software Corp. |
//| http://www.metaquotes.net/ |
//+------------------------------------------------------------------+
extern double TakeProfit = 50;
extern double Lots = 0.1;
extern double TrailingStop = 30;
extern double MACDOpenLevel=3;
extern double MACDCloseLevel=2;
extern double MATrendPeriod=26;
//+------------------------------------------------------------------+
//| |
//+------------------------------------------------------------------+
int start()
{
double MacdCurrent, MacdPrevious, SignalCurrent;
double SignalPrevious, MaCurrent, MaPrevious;
int cnt, ticket, total;
// initial data checks
// it is important to make sure that the expert works with a normal
// chart and the user did not make any mistakes setting external
// variables (Lots, StopLoss, TakeProfit,
// TrailingStop) in our case, we check TakeProfit
// on a chart of less than 100 bars
if(Bars<100)
{
Print("bars less than 100");
return(0);
}
if(TakeProfit<10)
{
Print("TakeProfit less than 10");
return(0); // check TakeProfit
}
// to simplify the coding and speed up access
// data are put into internal variables
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);
total=OrdersTotal();
if(total<1)
{
// no opened orders identified
if(AccountFreeMargin()<(1000*Lots))
{
Print("We have no money. Free Margin = ", AccountFreeMargin());
return(0);
}
// check for long position (BUY) possibility
if(MacdCurrent<0 && MacdCurrent>SignalCurrent && MacdPrevious<SignalPrevious &&
MathAbs(MacdCurrent)>(MACDOpenLevel*Point) && MaCurrent>MaPrevious)
{
ticket=OrderSend(Symbol(),OP_BUY,Lots,Ask,3,0,Ask+TakeProfit*Point,"macd sample",16384,0,Green);
if(ticket>0)
{
if(OrderSelect(ticket,SELECT_BY_TICKET,MODE_TRADES)) Print("BUY order opened : ",OrderOpenPrice());
}
else Print("Error opening BUY order : ",GetLastError());
return(0);
}
// check for short position (SELL) possibility
if(MacdCurrent>0 && MacdCurrent<SignalCurrent && MacdPrevious>SignalPrevious &&
MacdCurrent>(MACDOpenLevel*Point) && MaCurrent<MaPrevious)
{
ticket=OrderSend(Symbol(),OP_SELL,Lots,Bid,3,0,Bid-TakeProfit*Point,"macd sample",16384,0,Red);
if(ticket>0)
{
if(OrderSelect(ticket,SELECT_BY_TICKET,MODE_TRADES)) Print("SELL order opened : ",OrderOpenPrice());
}
else Print("Error opening SELL order : ",GetLastError());
return(0);
}
return(0);
}
// it is important to enter the market correctly,
// but it is more important to exit it correctly...
for(cnt=0;cnt<total;cnt++)
{
OrderSelect(cnt, SELECT_BY_POS, MODE_TRADES);
if(OrderType()<=OP_SELL && // check for opened position
OrderSymbol()==Symbol()) // check for symbol
{
if(OrderType()==OP_BUY) // long position is opened
{
// should it be closed?
if(MacdCurrent>0 && MacdCurrent<SignalCurrent && MacdPrevious>SignalPrevious &&
MacdCurrent>(MACDCloseLevel*Point))
{
OrderClose(OrderTicket(),OrderLots(),Bid,3,Violet); // close position
return(0); // exit
}
// check for trailing stop
if(TrailingStop>0)
{
if(Bid-OrderOpenPrice()>Point*TrailingStop)
{
if(OrderStopLoss()<Bid-Point*TrailingStop)
{
OrderModify(OrderTicket(),OrderOpenPrice(),Bid-Point*TrailingStop,OrderTakeProfit(),0,Green);
return(0);
}
}
}
}
else // go to short position
{
// should it be closed?
if(MacdCurrent<0 && MacdCurrent>SignalCurrent &&
MacdPrevious<SignalPrevious && MathAbs(MacdCurrent)>(MACDCloseLevel*Point))
{
OrderClose(OrderTicket(),OrderLots(),Ask,3,Violet); // close position
return(0); // exit
}
// check for trailing stop
if(TrailingStop>0)
{
if((OrderOpenPrice()-Ask)>(Point*TrailingStop))
{
if((OrderStopLoss()>(Ask+Point*TrailingStop)) || (OrderStopLoss()==0))
{
OrderModify(OrderTicket(),OrderOpenPrice(),Ask+Point*TrailingStop,OrderTakeProfit(),0,Red);
return(0);
}
}
}
}
}
}
return(0);
}
// the end.