Python数据结构基础（三）——类（Class）

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二、类

类是Python中面向对象编程的基本部分。

# Creating the class
class Pets(object):
  
    # Initialize the class
    def __init__(self, species, color, name):
        self.species = species
        self.color = color
        self.name = name

    # For printing  
    def __str__(self):
        return "{0} {1} named {2}.".format(self.color, self.species, self.name)

    # Example function
    def change_name(self, new_name):
        self.name = new_name

# Creating an instance of a class
my_dog = Pets(species="dog", color="orange", name="Guiness",)
print (my_dog)
print (my_dog.name)

输出结果：

orange dog named Guiness.
Guiness

# Using a class's function
my_dog.change_name(new_name="Charlie")
print (my_dog)
print (my_dog.name)

输出结果：

orange dog named Charlie.
Charlie