征服Python类与对象，掌握面向对象编程的利器

# 定义一个名为Person的类class Person:# 类属性species = "Homo sapiens"# 构造方法def __init__(self, name, age):# 实例属性self.name = nameself.age = age# 实例方法def greet(self):print(f"Hello, my name is {self.name} and I am {self.age} years old.")# 创建Person类的实例person1 = Person("John", 25)person2 = Person("Mary", 30)# 调用实例方法person1.greet()person2.greet()

# 定义一个名为Student的类，继承自Person类class Student(Person):# 类属性school = "MIT"# 构造方法def __init__(self, name, age, major):# 调用父类的构造方法super().__init__(name, age)# 实例属性self.major = major# 实例方法def study(self):print(f"{self.name} is studying {self.major} at {self.school}.")# 创建Student类的实例student1 = Student("John", 25, "Computer Science")# 调用实例方法student1.greet()student1.study()

Hello, my name is John and I am 25 years old.John is studying Computer Science at MIT.