2. 定义生物类Live，（属性：name名称）它的两个子类分别是动物Animals（属性：color颜色）和植物Plants（属性：color颜色）。其中动物Animals的子类有Cow奶牛类和Sheep绵羊类，（属性：weight体重）。植物Plants类有Tree树类和Flowers类，（属性：height高度）。用程序定义他们之间的关系，要求：对属性进行封装。同时定义无参构造和有参构造。贴上程序

以下是符合要求的Python程序：

class Live:
    def __init__(self, name):
        self.__name = name

    def get_name(self):
        return self.__name

    def set_name(self, name):
        self.__name = name


class Animals(Live):
    def __init__(self, name, color):
        super().__init__(name)
        self.__color = color

    def get_color(self):
        return self.__color

    def set_color(self, color):
        self.__color = color


class Cow(Animals):
    def __init__(self, name, color, weight):
        super().__init__(name, color)
        self.__weight = weight

    def get_weight(self):
        return self.__weight

    def set_weight(self, weight):
        self.__weight = weight


class Sheep(Animals):
    def __init__(self, name, color, weight):
        super().__init__(name, color)
        self.__weight = weight

    def get_weight(self):
        return self.__weight

    def set_weight(self, weight):
        self.__weight = weight


class Plants(Live):
    def __init__(self, name, color):
        super().__init__(name)
        self.__color = color

    def get_color(self):
        return self.__color

    def set_color(self, color):
        self.__color = color


class Tree(Plants):
    def __init__(self, name, color, height):
        super().__init__(name, color)
        self.__height = height

    def get_height(self):
        return self.__height

    def set_height(self, height):
        self.__height = height


class Flowers(Plants):
    def __init__(self, name, color, height):
        super().__init__(name, color)
        self.__height = height

    def get_height(self):
        return self.__height

    def set_height(self, height):
        self.__height = height

以上程序中，Live是父类，Animals和Plants是Live的两个子类，Cow、Sheep、Tree和Flowers是Animals和Plants的子类，分别包含各自的属性和方法。其中，属性都进行了封装，可以通过getter和setter方法进行访问和修改。同时，每个类都定义了无参构造和有参构造方法，便于对象的创建。