AttributeError：“str”对象没有属性“company”

Question

我无法弄清楚这一点。我想我错了如何调用一个对象。 并且对象显然不称为公司名称。

注册客户后，选择2进入子菜单显示客户列表， 然后写下客户名称以显示有关特定客户的更多信息

# APP REVOLUTIO SOLUTIONS - OverView ARS v1.0



class OVARS:

    def __init__(self, company, kNr, adr, tlf, sp, app, appV, date, afd, ini):

        self.company = company
        self.kNr = kNr
        self.adr = adr
        self.tlf = tlf
        self.sp = sp
        self.app = app
        self.appV = appV
        self.date = date
        self.afd = afd
        self.ini = ini


class udskriv(OVARS):

    def __init__(self):
        super(OVARS, self).__init__()


    def udskriv_kunde(self, cuna):
        print(cuna.company)
        print(cuna.kNr)
        print(cuna.adr)
        print(cuna.tlf)
        print(cuna.sp)
        print(cuna.app)
        print(cuna.appV)
        print(cuna.date)
        print(cuna.afd)
        print(cuna.ini)



######################## PROGRAM START ########################

udskrivKALD = udskriv()

print('OverView ARS v1.0')


customerList = []
i = 0

while True:

    try:
        menuChoice = int(input('''
1. apply new customer
2. show existing customers
3. exit
        \n'''))
    except ValueError:
        print('choice not accepted.\n')
        continue

    print()

    if menuChoice == 1:

        addCompanyName = input('enter company name: ')
        addKundeNr = input('enter customer ID.: ')
        addAdresse = input('enter address: ')
        addTelefon = input('enter telephone nr.: ')
        addSP = input('enter Servicepackage: ')
        addApp = input('enter app: ')
        addAppV = input('enter App version: ')
        addDate = input('enter Date: ')
        addAfd = input('enter department: ')
        addIni = input('enter Inititials: ')

        customerList.append(addCompanyName)

        print('\ncustomer registered: ' + str(addCompanyName) + '\n')

        newCustomer = addCompanyName

        newCustomer = OVARS(addCompanyName, addKundeNr, addAdresse, addTelefon, addSP, addApp, addAppV, addDate, addAfd, addIni)

        continue


    elif menuChoice == 2:

        i = 0
        j = 0
        k = 1
        for i in customerList:
            print(str(k) + ': ' + customerList[j])
            j += 1
            k += 1


        subMenu2Choice = input('''
choose customer to show customer information,
or choose 0 to go back to first menu
    \n''')


        if subMenu2Choice == 0:
            continue

        elif subMenu2Choice in customerList:
            udskrivKALD.udskriv_kunde(subMenu2Choice)

        else:
            print('wrong choice')
            continue


    elif menuChoice == 3: # Exiting Program
        break


    else:
        print('choice not accepted.\n')
        continue

    #udskrivKALD.udskriv_kunde(newCustomer)


print()

# END OF PROGRAM

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Answer 1

这里有一个快速修复：

正如评论中已经提到的那样，您正在尝试将字符串传递给需要特定对象的函数。您可以使用customerList 来存储所有创建的对象，而不仅仅是company 属性：

customerList.append(newCustomer)

对于显示现有客户修复，使用这个 sn-p：

elif any(i.company==subMenu2Choice for i in customerList):
            for i in customerList:
                if i.company==subMenu2Choice:udskrivKALD.udskriv_kunde(i) 

代码：

# APP REVOLUTIO SOLUTIONS - OverView ARS v1.0
class OVARS:
    def __init__(self, company, kNr, adr, tlf, sp, app, appV, date, afd, ini):
        self.company = company
        self.kNr = kNr
        self.adr = adr
        self.tlf = tlf
        self.sp = sp
        self.app = app
        self.appV = appV
        self.date = date
        self.afd = afd
        self.ini = ini

class udskriv(OVARS):
    def __init__(self):
        super(OVARS, self).__init__()

    def udskriv_kunde(self, cuna):
        print(cuna.company)
        print(cuna.kNr)
        print(cuna.adr)
        print(cuna.tlf)
        print(cuna.sp)
        print(cuna.app)
        print(cuna.appV)
        print(cuna.date)
        print(cuna.afd)
        print(cuna.ini)

######################## PROGRAM START ########################

udskrivKALD = udskriv()

print('OverView ARS v1.0')

customerList = []
i = 0

while True:

    try:
        menuChoice = int(input('''
1. apply new customer
2. show existing customers
3. exit
        \n'''))
    except ValueError:
        print('choice not accepted.\n')
        continue

    print()

    if menuChoice == 1:

        addCompanyName = input('enter company name: ')
        addKundeNr = input('enter customer ID.: ')
        addAdresse = input('enter address: ')
        addTelefon = input('enter telephone nr.: ')
        addSP = input('enter Servicepackage: ')
        addApp = input('enter app: ')
        addAppV = input('enter App version: ')
        addDate = input('enter Date: ')
        addAfd = input('enter department: ')
        addIni = input('enter Inititials: ')



        print('\ncustomer registered: ' + str(addCompanyName) + '\n')

        newCustomer = addCompanyName

        newCustomer = OVARS(addCompanyName, addKundeNr, addAdresse, addTelefon, addSP, addApp, addAppV, addDate, addAfd, addIni)

        customerList.append(newCustomer)

        continue


    elif menuChoice == 2:

        i = 0
        j = 0
        k = 1
        for i in customerList:
            print(str(k) + ': ' + customerList[j].company)
            j += 1
            k += 1


        subMenu2Choice = input('''
choose customer to show customer information,
or choose 0 to go back to first menu
    \n''')


        if subMenu2Choice == 0:
            continue

        elif any(i.company==subMenu2Choice for i in customerList):
            for i in customerList:
                if i.company==subMenu2Choice:udskrivKALD.udskriv_kunde(i)

        else:
            print('wrong choice')
            continue


    elif menuChoice == 3: # Exiting Program
        break


    else:
        print('choice not accepted.\n')
        continue

    #udskrivKALD.udskriv_kunde(newCustomer)


print()

# END OF PROGRAM