限制今天或某一天的写法

1. double GetProfitForDay(int ai_0)
   
2. 
   
3. {
   
4. 
   
5.    double ld_ret_4 = 0;
   
6. 
   
7.    for (int l_pos_12 = 0; l_pos_12 < OrdersHistoryTotal(); l_pos_12++) {
   
8. 
   
9.       if (!(OrderSelect(l_pos_12, SELECT_BY_POS, MODE_HISTORY))) break;
   
10. 
    
11.       if (OrderSymbol() == Symbol() && (OrderMagicNumber() == BuyMagic || OrderMagicNumber() == SellMagic))
    
12. 
    
13.          if (OrderCloseTime() >= iTime(Symbol(), PERIOD_D1, ai_0) && OrderCloseTime() < iTime(Symbol(), PERIOD_D1, ai_0) + 86400) ld_ret_4 += OrderProfit();
    
14. 
    
15.    }
    
16. 
    
17.    return (ld_ret_4);
    
18. 
    
19. }

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