A: FruitFruit grow
B: FruitVegetable grow
C: VegetableFruit grow
D: VegetableVegetable grow
举一反三
- class Person: def __init__(self,n="xxx"): self.name=n class Student(Person): def __init__(self,s="male"): self.sex=s def show(self): print(self.name,self.sex) s=Student("female") s.show() 结果：
- class Student:def __init__(self,name,age):self.name=nameself.age=agedef fun1(self):print("hello")（ ）def fun2(self):print("yes")child=Child("Tom",20)child.fun1()
- class Student: def __init__(self,n="xxx"): self.name=n def show(self): print(self.name) s=Student("yyy") s.show() 结果
- class Student: def __init__(self,n="xxx",s="男"): self.name=n self.sex=s def show(self): print(s.name,s.sex) s=Student("yyy") Student.show(s) 结果：
- class Student: def __init__(self,n="xxx"): self.name=n def show(self): print(self.name)s=Student("yyy")s.show()结果 A: yyy B: xxx C: None D: 错误
内容
- 0
下列代码的输出结果是（_____）。 class Account: def __init__(self,id): self.id=id id=888 acc=Account(100) print(acc.id)
- 1
下面关于抽象类定义合法的是（ ） A: class Animal { abstract void grow(); } B: abstract Animal { abstract void grow(); } C: class abstract Animal { abstract void grow(); } D: abstract class Animal { abstract void grow(); }
- 2
Python中类的定义正确的是 A: class Phone: name = "" call(self, name) print(name, "打电话") B: class Phone: name = "" call(self, name) print(name, "打电话") C: class Phone: name = "" def call(self, name): print(name, "打电话") D: class Phone name = "" def call(self, name): print(name, "打电话")
- 3
class Person:def __init__(self,n="xxx"):self.name=nclass Student(Person):def __init__(self,s="male"):self.sex=sdef show(self):print(self.name,self.sex)s=Student("female")s.show()结果： A: xxx male B: xxx C: 结果错误 D: xxx female
- 4
下面程序运行的结果是( )。class Person:def __init__(self,n="张三"): self.name=nclass Student(Person):def __init__(self,s="male"):self.sex=sdef show(self):print(self.name,self.sex)s=Student("female")s.show() A: 张三 male B: 张三 female C: 出错 D: 张三