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我試圖通過創建一個管理電影商店的OO代碼來練習Python編碼。我所做的代碼工作正常,做我想做的事,但在我的代碼中,對象電影有2個屬性(名稱,ncopies),我用列表關聯每個電影名稱與它自己的ncopies屬性,我想通過使用面向對象的編程,如something.name來訪問這些屬性,這給我的電影的名稱,而不是必須維護2相關列表,並必須獲得索引,每次我想要得到一個屬性,任何想法?如何在創建多個對象後訪問特定的對象屬性? Python
class Movie:
global lista_names
global lista_ncopies
lista_names = [] #list of movie names
lista_ncopies = [] #list of movie copies
def __init__(self, name, ncopies):#keeps movie name and ncopies with same index
self.name = name
self.ncopies = ncopies
lista_names.append(self.name) #append movie name to the list
lista_ncopies.append(self.ncopies) #append ncopies to the list
def showNumberOfCopies():
pesquisa = input("digite o nome")#variable receives the movie name
if pesquisa in lista_names: #checks if its in the movie names list
indice = lista_names.index(pesquisa) #gets its index
print ("num de copias de",pesquisa,"eh ",lista_ncopies[indice])
menu()
def addMovie():
name = input("digite o titulo") #get name of the movie
ncopies = int(input("digite o numero de copias"))#get num of copies
movie1 = Movie(name, ncopies) #create object
menu()
def updateMovie():
pesquisa = input("type the name of the movie ")
if pesquisa in lista_names: #checks if movie is in lista_names
indice = lista_names.index(pesquisa) #gets the index
else:
opcao = input("o filme desejado nao esta em nosso acervo, deseja atualizar outro filme? s/n") #just in case the movie is not in lista_names
if opcao == 's' or opcao == 'S':
updateMovie()
else:
menu()
opcao2 = input("update ncopies or movie name? type ncopias/nome")
if opcao2 == 'ncopias':
print ("the number of copies is: ",lista_ncopies[indice])
ncopies_new = int(input("digite o numero de copias novo"))
lista_ncopies[indice] = ncopies_new
menu()
elif opcao2 == 'nome':
print ("name of the movie is",lista_names[indice])
name_new = input("type the new name")
lista_names[indice] = name_new
print (lista_names)
menu()
def menu():
opcao = int(input('1-add filme\n2-search filme\n3-update\n4-exit'))
if opcao == 1:
addMovie()
elif opcao == 2:
showNumberOfCopies()
elif opcao == 3:
updateMovie()
elif opcao == 4:
quit
else:
menu()
menu()
您會考慮使用一個字典對象的數量的電影叫什麼名字? – Sentient07
嗨,謝謝你的回答,我認爲這樣可以很好地工作,但是如果我想在電影類中添加更多屬性(名稱,年份,ncopies,流派等),那麼你解決了我的問題,但那不是什麼我試圖做=) –
你可以使用像{名稱:{<另一個字典映射數據}} – Sentient07