6-1 设计一个Triangle类继承自GeometricObject类

好的，根据您的要求，我来设计一个Triangle类继承自GeometricObject类，以下是示例代码：

class GeometricObject:
    def __init__(self, color="white", filled=False):
        self.color = color
        self.filled = filled

    def get_color(self):
        return self.color

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

    def is_filled(self):
        return self.filled

    def set_filled(self, filled):
        self.filled = filled

class Triangle(GeometricObject):
    def __init__(self, side1=1.0, side2=1.0, side3=1.0, color="white", filled=False):
        super().__init__(color, filled)
        self.side1 = side1
        self.side2 = side2
        self.side3 = side3

    def get_side1(self):
        return self.side1

    def set_side1(self, side1):
        self.side1 = side1

    def get_side2(self):
        return self.side2

    def set_side2(self, side2):
        self.side2 = side2

    def get_side3(self):
        return self.side3

    def set_side3(self, side3):
        self.side3 = side3

    def get_area(self):
        s = (self.side1 + self.side2 + self.side3) / 2
        return (s * (s - self.side1) * (s - self.side2) * (s - self.side3)) ** 0.5

    def get_perimeter(self):
        return self.side1 + self.side2 + self.side3

这个Triangle类继承自GeometricObject类，具有三个属性：side1、side2和side3表示三角形的三边长度，还有color和filled属性表示三角形的颜色和是否填充。此外，Triangle类还实现了计算三角形面积和周长的方法get_area和get_perimeter。