AttributeError:类型对象“”没有属性“write”

Question

我的代码遇到AttributeError，我不知道如何修复它

这是我的课：

class Reservation:

    def __init__(self, passengerName, departureCity, destinationCity, dateOfTravel, timeOfTravel, numberOfTickets):
        self.passengerName = passengerName
        self.departureCity = departureCity
        self.destinationCity = destinationCity
        self.dateOfTravel = dateOfTravel
        self.timeOfTravel = timeOfTravel
        self.numberOfTickets = numberOfTickets

reservationList = list()

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File "C:/Users//Desktop/pld/ticket_reservation5.py", line 183, in <module>
    main()
  File "C:/Users//Desktop/pld/ticket_reservation5.py", line 176, in main
    reservation.write(reservation.passengerName + "," + reservation.departureCity + "," + reservation.destinationCity +
AttributeError: type object 'Reservation' has no attribute 'write'

Answer 1

这样做，并确保列表中的最后一个字符串有一个\n，这样每当不同的用户在新行中输入信息时，该字符串就会出现：

with open("file_name.txt", 'a') as f: # "a" is used to append data to a file that is it
# does not delete previously written data instead appends to it also f is the variable 
# which stores the file and could be anything
    for reservation in reservationList:
        f.write(reservation)
    print("done")