Python：我怎樣才能讓我的功能打印一次？

Question

我有這個功能：

def encontrar(data_,departureAirportCode_,departureTime_,arrivalAirportCode_,arrivalTime_):
    for i in range(len(data_flights)):
        data=data_[i]["flights"]
        for k in range(len(data)):
            departureAirportCode=data[k]["departureAirportCode"]
            departureTime=data[k]["departureTime"]
            arrivalAirportCode=data[k]["arrivalAirportCode"]
            arrivalTime=data[k]["arrivalTime"]            
            if departureAirportCode==departureAirportCode_ and departureTime==departureTime_ and arrivalAirportCode==arrivalAirportCode_ and arrivalTime==arrivalTime_:
                code=data_[i]["flights"][k]["itinerary"][0]["flightCode"]
                print(code)
    else:
        print("There is no flights on that date")

像這樣打印結果（一個interget）：

encontrar(data_flights,"SCL","2022-01-11T15:40:00","PMC","2022-01-11T17:20:00")
401
401
401
401
401
401
401
401
401
401
401
401
401
401
401
401
401
401
401
401
401
There is no flights on that date

而是僅：401 提前感謝，我對 python 有點新手:) 提前感謝，我對 python 有點新手:)

Answer 1

您需要在 for 循環中使用 break 語句，如下所示：

def encontrar(data_,departureAirportCode_,departureTime_,arrivalAirportCode_,arrivalTime_):
    for i in range(len(data_flights)):
        data=data_[i]["flights"]
        for k in range(len(data)):
            departureAirportCode=data[k]["departureAirportCode"]
            departureTime=data[k]["departureTime"]
            arrivalAirportCode=data[k]["arrivalAirportCode"]
            arrivalTime=data[k]["arrivalTime"]            
            if departureAirportCode==departureAirportCode_ and departureTime==departureTime_ and arrivalAirportCode==arrivalAirportCode_ and arrivalTime==arrivalTime_:
                code=data_[i]["flights"][k]["itinerary"][0]["flightCode"]
                print(code)
                break

    else:
        print("There is no flights on that date")