我正在尝试在MQL4上创建一个相当简单的专家顾问，但是在编译后它甚至没有任何错误也没有执行。
概念如下：
对于要执行的买单：
bool buy_condition_1 = iOsMA(NULL, 0, 12, 26, 9, PRICE_CLOSE, 1) > 0 ;
bool buy_condition_2 = iCCI(NULL, 0, 14, PRICE_CLOSE, 1) < -100 ;
bool buy_condition_3 = (MathMin(Open[1],Close[1]) - Low[1] >= 200*Point);
对于要执行的卖单：
bool sell_condition_1 = iOsMA(NULL, 0, 12, 26, 9, PRICE_CLOSE, 1) < 0;
bool sell_condition_2 = iCCI(NULL, 0, 14, PRICE_CLOSE, 1) > 100 ;
bool sell_condition_3 = (High[1] - MathMax(Open[1],Close[1]) >=200*Point);
我添加了这些代码，但他们没有执行任何订单。
EA的意思是在以下情况下购买：
出售：
任何帮助将不胜感激。
谢谢
#property copyright "Chinedu Onuoha"
#property link "[email protected]"
// External variables
extern double LotSize = 0.1;
extern double StopLoss = 20;
extern double TakeProfit = 0;
extern double TrailingStopLimit = 0;
extern double TrailingStopStop = 0;
extern int MagicNumber = 23310;
// Global variables
int LongTicket;
int ShortTicket;
double RealPoint;
double open;
// Init function
int init(){
open = 0;
RealPoint = RealPipPoint(Symbol());
}
// Start function
int start(){
if (open == Open[0]) return 0;
open = Open[0];
//long
OrderSelect(LongTicket,SELECT_BY_TICKET);
if(OrderCloseTime() != 0 || LongTicket == 0) {
bool buy_condition_1 = iOsMA(NULL, 0, 12, 26, 9, PRICE_CLOSE, 1) > 0 ;
bool buy_condition_2 = iCCI(NULL, 0, 14, PRICE_CLOSE, 1) < -100 ;
bool buy_condition_3 = (MathMin(Open[1],Close[1]) - Low[1] >= 200*Point);
if( buy_condition_1 && buy_condition_2 && buy_condition_3 ){
OrderSelect(ShortTicket,SELECT_BY_TICKET);
if(OrderCloseTime() == 0 && ShortTicket > 0){
bool Closed = OrderClose(ShortTicket,OrderLots(),Ask,0,Red);
}
LongTicket = OrderSend(Symbol(),OP_BUY,LotSize,Ask,0,0,0,"Buy Order",MagicNumber,0,Green);
OrderSelect(LongTicket,SELECT_BY_TICKET);
double OpenPrice = OrderOpenPrice();
if(StopLoss > 0) double LongStopLoss = OpenPrice - (StopLoss * RealPoint);
if(TakeProfit > 0) double LongTakeProfit = OpenPrice + (TakeProfit * RealPoint);
if(LongStopLoss > 0 || LongTakeProfit > 0) {
bool LongMod = OrderModify(LongTicket,OpenPrice,LongStopLoss, LongTakeProfit,0);
}
ShortTicket = 0;
}
}
//Close long
if (OrdersTotal() > 0){
bool close_buy_condition_1 = iCCI(NULL, 0, 14, PRICE_CLOSE, 1) > 100 ;
bool close_buy_condition_2 = iOsMA(NULL, 0, 12, 26, 9, PRICE_CLOSE, 1) < 0;
if( close_buy_condition_1 && close_buy_condition_2){
OrderSelect(LongTicket,SELECT_BY_TICKET);
if(OrderCloseTime() == 0 && LongTicket > 0){
Closed = OrderClose(LongTicket,OrderLots(),Bid,0,Red);
LongTicket = 0;
}
}
}
// Short
OrderSelect(ShortTicket,SELECT_BY_TICKET);
if (OrderCloseTime() != 0 || ShortTicket == 0) {
bool sell_condition_1 = iOsMA(NULL, 0, 12, 26, 9, PRICE_CLOSE, 1) < 0;
bool sell_condition_2 = iCCI(NULL, 0, 14, PRICE_CLOSE, 1) > 100 ;
bool sell_condition_3 = (High[1] - MathMax(Open[1],Close[1]) >= 200*Point);
if( sell_condition_1 && sell_condition_2 && sell_condition_3 ){
OrderSelect(LongTicket,SELECT_BY_TICKET);
if(OrderCloseTime() == 0 && LongTicket > 0){
Closed = OrderClose(LongTicket,OrderLots(),Bid,0,Red);
}
ShortTicket = OrderSend(Symbol(),OP_SELL,LotSize,Bid,0,0,0,"Sell Order",MagicNumber,0,Red);
OrderSelect(ShortTicket,SELECT_BY_TICKET);
OpenPrice = OrderOpenPrice();
if(StopLoss > 0) double ShortStopLoss = OpenPrice + (StopLoss * RealPoint);
if(TakeProfit > 0) double ShortTakeProfit = OpenPrice - (TakeProfit * RealPoint);
if(ShortStopLoss > 0 || ShortTakeProfit > 0) {
bool ShortMod = OrderModify(ShortTicket,OpenPrice,ShortStopLoss, ShortTakeProfit,0);
}
LongTicket = 0;
}
}
//Close Short
if (OrdersTotal() > 0){
bool close_sell_condition_1 = iCCI(NULL, 0, 14, PRICE_CLOSE, 1) < -100 ;
bool close_sell_condition_2 = iOsMA(NULL, 0, 12, 26, 9, PRICE_CLOSE, 1) > 0;
if ( close_sell_condition_1 && close_sell_condition_2){
OrderSelect(ShortTicket,SELECT_BY_TICKET);
if(OrderCloseTime() == 0 && ShortTicket > 0){
Closed = OrderClose(ShortTicket,OrderLots(),Ask,0,Red);
ShortTicket = 0;
}
}
}
return(0);
}
// Pip Point Function
double RealPipPoint(string Currency){
int CalcDigits = MarketInfo(Currency,MODE_DIGITS);
if(CalcDigits == 2 || CalcDigits == 3) double CalcPoint = 0.01;
else if(CalcDigits == 4 || CalcDigits == 5) CalcPoint = 0.0001;
return(CalcPoint);
}
欢迎来到MQL4！请显示EA的代码（您展示的内容是不够的） - 必须根据某些事件（OnTick,OnTimer,OnChartEvent）采取一些行动，检查一些条件（如您在示例中显示的那些条件）并决定做什么（没有，发送买入，发送卖出，移动止损/止盈，必要时进行其他修改，关闭机票），然后发送订单或修改或关闭。查看MQL4 \ Experts文件夹中给出的MA EA和Macd EA的示例，以了解它应该是什么样子
您的代码忽略了一种语言规则。它被称为有效范围。鉴于上面的代码，函数RealPipPoint()在沉默中导致一个主要问题：
double RealPipPoint( string Currency ){
int CalcDigits = MarketInfo( Currency, MODE_DIGITS );
if ( CalcDigits == 2
|| CalcDigits == 3
) double CalcPoint = 0.01;
else if( CalcDigits == 4
|| CalcDigits == 5
) CalcPoint = 0.0001;
return( CalcPoint );
}
在这里，return( )几乎不会返回适当的价值。为什么？正确的，因为有效范围：double CalcPoint，在某个范围内声明“内部”（if(){...}-one），一旦代码执行步骤超出有效范围，就不再存在/承担任何值。
double RealPipPoint( string Currency ){
int CalcDigits = MarketInfo( Currency, MODE_DIGITS );
if ( CalcDigits == 2
|| CalcDigits == 3
) return( 0.01 ); // WILL WORK FINE
else if( CalcDigits == 4
|| CalcDigits == 5
) return( 0.0001 ); // WILL WORK FINE
return( EMPTY );
}
下一个， 如果你定义一个函数类型，保持这样的定义是公平的：
// Init function
int init(){ // read New-MQL4 int OnInit(){...}
open = 0;
RealPoint = RealPipPoint( _Symbol );
return( INIT_SUCCEDED ); // return(); // WAS MISSING AT ALL
}
MQL4代码执行单元需要这个正式的结构：公平地说，如果“它有9个警告而0个错误”没有什么致命的，除了阅读警告所涵盖的内容（最重要的是，这样的警告有助于程序员抛光类型转换/类型转换并消除歧义代码）。
随意点击列出的错误/警告，IDE应该将光标移动到触发错误/警告的行。
// #####################################################################
// CODE-PREPROCESSOR AND MQL4-LANGUAGE-SPECIFIC DEFINITIONS:
#property show_inputs
// #####################################################################
// HEADER DEFINITIONS:
#define aThingToDEFINE aValueToHAVE
// #####################################################################
// EXTERNS FOR EA-SETUP + STRATEGY-TESTER OPTIMISATION SCANS:
extern double OsMA_LIMIT_LONG = 0;
extern double iCCA_LIMIT_LONG = -100;
extern double OC2L_LIMIT_LONG = 200;
extern double OsMA_LIMIT_SHORT = 0;
extern double iCCA_LIMIT_SHORT = 100;
extern double OC2L_LIMIT_SHORT = 200;
// #####################################################################
// INIT HANDLER:
int onInit(){
OC2L_LIMIT_LONG *= Point;
H2OC_LIMIT_SHORT *= Point;
return( INIT_SUCCEEDED );
}
// #####################################################################
// FX-MARKET QUOTE-FEED EVENT HANDLER:
void OnTick(){
// LONG-DIRECTION FLAGS
bool buy_condition_1 = ( OsMA_LIMIT_LONG < iOsMA( NULL, 0, 12, 26, 9, PRICE_CLOSE, 1 ) );
bool buy_condition_2 = ( iCCA_LIMIT_LONG > iCCI( NULL, 0, 14, PRICE_CLOSE, 1 ) );
bool buy_condition_3 = ( OC2L_LIMIT_LONG <= ( MathMin( Open[1],
Close[1]
)
- Low[1]
)
);
// SHORT-DIRECTION FLAGS
bool sell_condition_1 = ( OsMA_LIMIT_SHORT > iOsMA( NULL, 0, 12, 26, 9, PRICE_CLOSE, 1 ) );
bool sell_condition_2 = ( iCCI_LIMIT_SHORT < iCCI( NULL, 0, 14, PRICE_CLOSE, 1 ) );
bool sell_condition_3 = ( H2OC_LIMIT_SHORT <= ( High[1]
- MathMax( Open[1],
Close[1]
)
)
);
// DECISIONS:
if ( buy_condition_1
&& buy_condition_2
&& buy_condition_3
){
// ***********************************
// ACT:
}
if ( sell_condition_1
&& sell_condition_2
&& sell_condition_3
){
// ***********************************
// ACT:
}
}
// #####################################################################
// DEINIT HANDLER:
void OnDeinit( const int aDeinitREASON ){
// TIDY-UP?
..
}