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請問,我的程式是不是那裡有錯

string SymbolTA::getMACDTA( string symbol, ENUM_TIMEFRAMES period, int para1= 12 , int para2= 26 , int para3= 9 ) { double buf []; int NumberOfValues = 3 ; int macdHandle = iMACD (symbol,period,para1,para2,para3, PRICE_TYPICAL ); if (macdHandle < 0 ) { Print ( "Creating MACD

請問,我測程式時為何程式都沒有交易. when i test program, no any trade made by program, why ?

參數都有設定,可是程式跑完結果都沒有交易資料。 我測這個文章中討論的程式 https://www.mql5.com/en/articles/647 I've been verify all necessary parameter and procedure, but not any trade which program made after test , why ? anybody can help me ? I test the program downloaded from here https://www.mql5.com/en/articles/647