在匹配两个表达式的case语句中执行模式

from typing import Union

class Shape:
    pass

class Circle(Shape):
    def __init__(self, radius: float):
        self.radius = radius

class Square(Shape):
    def __init__(self, side: float):
        self.side = side

def process_shape(shape: Shape):
    match shape:
        case Circle(radius) if radius > 10:
            print(f"Large circle with radius {radius}")
        case Circle(radius):
            print(f"Small circle with radius {radius}")
        case Square(side) if side > 10:
            print(f"Large square with side {side}")
        case Square(side):
            print(f"Small square with side {side}")
        case _:
            print("Unknown shape")

# 示例用法
circle1 = Circle(5)
circle2 = Circle(15)
square1 = Square(8)
square2 = Square(20)

process_shape(circle1)  # 输出: Small circle with radius 5
process_shape(circle2)  # 输出: Large circle with radius 15
process_shape(square1)  # 输出: Small square with side 8
process_shape(square2)  # 输出: Large square with side 20