MQL4 EA |为什么我的字符串变量没有包含在我的电子邮件正文中？

Question

好的，我收到了一封电子邮件，其中包含有关我的 EA 初始化状态的信息。

尽管声明了所有字符串变量，为什么我的字符串变量没有包含在我的电子邮件正文中？

int      hourOfDay = Hour();
int      startingHour = 12;
bool     BarTime;
string   eaName = WindowExpertName();
bool     InitOrders;
bool     InitTime;
string   symbol = OrderSymbol();

int OnInit()
{
   /*lastStamp = 0;
   GetMarketInfo_PerSymbol(Symbol(), true);
   fEvents(MODE_INIT);*/ /*Unrelated Code*/
   
   InitOrders = OrdersTotal();
   
   if(InitOrders == 0){
   
      InitOrders = true;
      Print("EA has been initialised to true");
   
   }else{
   
      InitOrders = false;
      Print("EA has been initialised to false");
   
   }
         
   InitTime = (hourOfDay >= startingHour && hourOfDay < 20);
   
   if(InitTime = true){
      Print("Trades will be placed");
      SendMail("Initialisation confirmation: "+(eaName),"Initialised by: User\n\nEA Name: "+(eaName)+"\n\nAsset: Forex CFD "+(symbol)+"\n\nDate of Initialisation "+TimeToString(TimeCurrent(),TIME_DATE | TIME_MINUTES)+" (This may differ from GMT)\n\nInitTime Status: Trades will be placed\n\nInitOrders: "+(InitOrders == True? "You have no open positions" : "You have an open position"));   
   
   }else{
   
      InitTime = false;
      Print("Trades will not be placed.");
      MessageBox("Trades will not be placed until "+IntegerToString(startingHour - 2,0)+"AM GMT\n\nIf you feel this is incorrect, please email us at xxx","| Important Notification",MB_OK|MB_ICONINFORMATION|MB_TOPMOST);
      SendMail("Initialisation confirmation: "+(eaName),"Initialised by: User\n\nEA Name: "+(eaName)+"\n\nAsset: Forex CFD "+(symbol)+"\n\nDate of Initialisation "+TimeToString(TimeCurrent(),TIME_DATE | TIME_MINUTES)+" (This may differ from GMT)\n\nInitTime Status: Trades will not be placed\n\nInitOrders: "+(InitOrders == True? "You have no open positions" : "You have an open position"));
   }
   
BarTime=Time[0];
   
return(INIT_SUCCEEDED);

}

Answer 1

你不应该在 header 中分配变量，它应该在 init 块中正确执行（这是你初始化的地方，可以正确分配变量）。您还在使用 OrderSymbol() 而未选择订单，因此它始终为空。

int      hourOfDay;
int      startingHour;
bool     BarTime;
string   eaName;
bool     InitOrders;
bool     InitTime;
string   symbol;

int OnInit()
{
   hourOfDay = Hour();
   startingHour = 12;
   eaName = WindowExpertName();
   symbol = Symbol();

   /*lastStamp = 0;
   GetMarketInfo_PerSymbol(Symbol(), true);
   fEvents(MODE_INIT);*/ /*Unrelated Code*/
   
   InitOrders = OrdersTotal();
   
   if(InitOrders == 0){
 
      InitOrders = true;
      Print("EA has been initialised to true");
 
   }else{

      InitOrders = false;
      Print("EA has been initialised to false");

   }
     
   InitTime = (hourOfDay >= startingHour && hourOfDay < 20);

   if(InitTime = true){
      Print("Trades will be placed");
      SendMail("Initialisation confirmation: "+(eaName),"Initialised by: User\n\nEA Name: "+(eaName)+"\n\nAsset: Forex CFD "+(symbol)+"\n\nDate of Initialisation "+TimeToString(TimeCurrent(),TIME_DATE | TIME_MINUTES)+" (This may differ from GMT)\n\nInitTime Status: Trades will be placed\n\nInitOrders: "+(InitOrders == True? "You have no open positions" : "You have an open position"));   

   }else{

      InitTime = false;
      Print("Trades will not be placed.");
      MessageBox("Trades will not be placed until "+IntegerToString(startingHour - 2,0)+"AM GMT\n\nIf you feel this is incorrect, please email us at xxx","| Important Notification",MB_OK|MB_ICONINFORMATION|MB_TOPMOST);
      SendMail("Initialisation confirmation: "+(eaName),"Initialised by: User\n\nEA Name:"+(eaName)+"\n\nAsset: Forex CFD "+(symbol)+"\n\nDate of Initialisation "+TimeToString(TimeCurrent(),TIME_DATE | TIME_MINUTES)+" (This may differ from GMT)\n\nInitTime Status: Trades will not be placed\n\nInitOrders: "+(InitOrders == True? "You have no open positions" : "You have an open position"));
   }

BarTime=Time[0];

return(INIT_SUCCEEDED);

}

MQL4 EA |为什么我的字符串变量没有包含在我的电子邮件正文中？

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