现有以下代码,执行以下命令报错的是() class Person: legs=2 __name="" def say(self): print("我是一个普通人") class Student(Person): nose=1 def say(self): print("我是一名学生")
A.Person().say();
B.Person.legs;
C.Student().say();
D.Student.__name;
A.Person().say();
B.Person.legs;
C.Student().say();
D.Student.__name;
A、The same genes in distantly related organisms can shape similar developmental pathways.
B、The eyes of insects and mammals must have evolved independently during evolution.
C、A common pathway underlies eye development in all three organisms.
D、All three genes evolved from a common ancestral sequence.
A、notorious
B、conspicuous
C、jealous
D、inferior
A、创建子类对象会自动调用父类的构造方法;
B、子类可以通过子类名.父类方法的方式调用父类方法;
C、子类可以通过super().父类方法的方式调用父类方法;
D、调用子类方法时,Python会首先在子类中查找是否定义了该方法,若子类中未定义,则在父类中查找调用。
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