Python 的 super() 如何應用於多重繼承?
在解釋 super() 之前,我們需要先了解 多重繼承 的概念。
多重繼承:指一個子類可以繼承多個父類。
在以下示例中,子類是從父類繼承了屬性和方法。
示例
class Father: fathername = "" def father(self): print(self.fathername) class Mother: mothername = "" def mother(self): print(self.mothername) class Child(Father, Mother): def parent(self): print("Father :", self.fathername) print("Mother :", self.mothername) s1 = Child() s1.fathername = "Srinivas" s1.mothername = "Anjali" s1.parent()
輸出
Father : Srinivas Mother : Anjali
以下示例展示 ( i.e) super() 如何與多重繼承一起使用
super() : super 函式可用於替換對
示例
class Father: fathername = "" def father(self): print(self.fathername) class Mother: mothername = "" def mother(self): print(self.mothername) class Child(Father, Mother): def parent(self): super().__init__() print("i am here") print("Father :", self.fathername) print("Mother :", self.mothername) s1 = Child() s1.fathername = "Srinivas" s1.mothername = "Anjali" s1.parent()
執行該程式後,輸出將是
輸出
i am here Father : Srinivas Mother : Anjali
廣告