<Class>物件沒有屬性<attribute_name>

所以，我是 python 的新手，在嘗試運行下面的代碼時遇到錯誤，我被困了好幾個小時

class ConjuntoDeInteiros:
    def _init_(self, conjunto, storage_capacity=100): #initializes a list and its length, default value is 100
        self.storage_capacity = storage_capacity
        self.conjunto = [None] * storage_capacity

    def addElement(self, intNumber): #add an element to the list
        self.conjunto.append(intNumber)

    def union(self, instanceOfConjuntoDeInteiros): #returns the union of an instance list with another instance list
        return self.conjunto   instanceOfConjuntoDeInteiros

if __name__ == '__main__':
    c1 = ConjuntoDeInteiros()
    c2 = ConjuntoDeInteiros()
    c1.addElement(10)
    c2.addElement(5)
    c1.union(c2)

錯誤：回溯（最近一次呼叫）：檔案“”，第 15 行，在檔案“”，第 7 行，在 addElement 中 AttributeError：'ConjuntoDeInteiros' 物件沒有屬性 'conjunto'

我究竟做錯了什么？？？

uj5u.com熱心網友回復：

你的init功能錯了。它必須是__init__，你有_init_。因此，您self.conjunto從未定義過，因此您的錯誤。您也有conjunto和storage_capacity作為 的引數__init__，但在創建ConjuntoDeInteiros().

uj5u.com熱心網友回復：

 它向您顯示的錯誤是由于您嘗試添加 class 的實體引起的ConjuntoDeInterios()，如果您想將其他類的串列與當前定義的類連接起來，您需要通過這種方式多載operator on ConjuntoDeInterios()：

class ConjuntoDeInteiros:
    def __init__(self, conjunto=[None], storage_capacity=100): #initializes a list and its length, default value is 100
        self.storage_capacity = storage_capacity
        self.conjunto = [None] * storage_capacity

    # overload operator ( )
    def __add__(self, instanceOfConjuntoDeInteiros): # returns the union of an instance list with another instance list
        return self.conjunto   instanceOfConjuntoDeInteiros.conjunto

    def addElement(self, intNumber): # add an element to the list
        self.conjunto.append(intNumber)

if __name__ == '__main__':
    c1 = ConjuntoDeInteiros()
    c2 = ConjuntoDeInteiros()
    c1.addElement(10)
    c2.addElement(5)
    print(c1   c2)

 None, None, None, None, None, None, None, None, None, None, None, None, None, None,
 None, None, None, None, None, None, None, None, None, None, None, None, None, None,
 None, None, None, None, None, None, None, None, None, None, None, None, None, None,
 None, None, None, None, None, None, None, None, None, None, None, None, None, None,
 None, None, None, None, None, None, None, None, None, None, None, None, None, None,
 None, None, None, None, None, None, None, None, None, None, None, None, None, None,
 None, None, None, None, None, None, None, None, None, None, None, None, None, None,
 None, None, 10,   None, None, None, None, None, None, None, None, None, None, None, 
 None, None, None, None, None, None, None, None, None, None, None, None, None, None, 
 None, None, None, None, None, None, None, None, None, None, None, None, None, None, 
 None, None, None, None, None, None, None, None, None, None, None, None, None, None, 
 None, None, None, None, None, None, None, None, None, None, None, None, None, None, 
 None, None, None, None, None, None, None, None, None, None, None, None, None, None, 
 None, None, None, None, None, None, None, None, None, None, None, None, None, None, 
 None, None, None, None, None, 5

uj5u.com熱心網友回復：

class ConjuntoDeInteiros:
    def _init_(self, conjunto, storage_capacity=100): #initializes a list and its length, default value is 100
        self.storage_capacity = storage_capacity
        self.conjunto = [None] * storage_capacity

您的代碼需要在 self.conjunto 中定義 conjunto。否則它不會識別conjunto。

標籤：Python 蟒蛇-3.x 哎呀

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