最佳编码实践-在相同的函数中绘制直线和圆圈-结构、开关、类函数

# 定义一个结构来表示直线和圆圈
class Shape:
    def __init__(self, shape_type, start_point, end_point, center, radius):
        self.shape_type = shape_type
        self.start_point = start_point
        self.end_point = end_point
        self.center = center
        self.radius = radius

# 定义一个绘图类
class Drawing:
    def draw(self, shape):
        if shape.shape_type == 'line':
            self.draw_line(shape.start_point, shape.end_point)
        elif shape.shape_type == 'circle':
            self.draw_circle(shape.center, shape.radius)

    def draw_line(self, start_point, end_point):
        # 绘制直线的代码

    def draw_circle(self, center, radius):
        # 绘制圆圈的代码

# 创建一个绘图对象
drawing = Drawing()

# 创建一个直线对象并绘制
line = Shape('line', (0, 0), (100, 100), None, None)
drawing.draw(line)

# 创建一个圆圈对象并绘制
circle = Shape('circle', None, None, (50, 50), 50)
drawing.draw(circle)