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                [六、調用父類方法](八、調用父類方法.md)>[success] # ~~~ 1.對無參數,只有返回的類方法加 @property 等同于getter,給屬性賦值,通常對這個屬性進行邏輯操作使用 2.對使用@property 進行setter 賦值操作的時候,方法名要和property 一致,然后加上 @.setter 3.對使用@property 進行delete 操作的時候,方法名要和property 一致,然后加上 @.deleter 4.python中不推薦像java 要把每一個屬性進行封裝 ~~~ >[danger] ##### 操作案例 ~~~ class Person: def __init__(self, first_name): self.first_name = first_name # Getter function @property def first_name(self): return self._first_name # Setter function @first_name.setter def first_name(self, value): if not isinstance(value, str): raise TypeError('Expected a string') self._first_name = value # Deleter function (optional) @first_name. deleter def first_name(self): raise AttributeError("Can't delete attribute") p = Person("w") # setter 賦值操作 p.first_name = "3" # getter -- property操作 print(p.first_name) # 刪除操作 del a.first_name ~~~ * 上面的也可以直接用python 定義有意義方法名實現 ~~~ 1.在初始換的時候使用定義好的set_first_name 方法,將變量賦值 2.用property 函數對應的參數分別是get,set,del 傳入 3.使用的時候,用property 返回值 例如下面的案例p.name ~~~ ~~~ class Person: def __init__(self, first_name): self.set_first_name(first_name) # Getter function def get_first_name(self): return self._first_name # Setter function def set_first_name(self, value): if not isinstance(value, str): raise TypeError('Expected a string') self._first_name = value # Deleter function (optional) def del_first_name(self): raise AttributeError("Can't delete attribute") # Make a property from existing get/set methods name = property(get_first_name, set_first_name, del_first_name) p = Person("w") # setter 賦值操作 # getter -- property操作 print(p.name) ~~~
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