python选择题

value = 3

def show(self) :

print(T.value)

t1= T()

t1.value=2

t1.show()

    def init(self, value):

        self.value = value

    def str(self):

        return f"MyClass with value {self.value}"

obj = MyClass(10)

print(obj)

    def greet(self):

        print("Hello from Parent")

class Child(Parent):

    def greet(self):

        print("Hello from Child")

obj = Child()

obj.greet()

    def speak(self):

        return "汪汪"

class Cat():

    def speak(self):

        return "咪咪"

def animal_sound(animal):

    return animal.speak()

dog = Dog()

cat = Cat()

print(animal_sound(dog), animal_sound(cat))

    data = f.read()

    numbers = data.split(',')

    total = sum(int(num) for num in numbers)

print(total)

    for line in source:

        dest.write(line)

with open('temp.txt','w') as fp:

fp.writelines(x)