代码示例：

class Rectangle: def init(self, length, width): self.length = length self.width = width

def area(self):
    return self.length * self.width

class Square: def init(self, side): self.side = side

def area(self):
    return self.side * self.side

def compare(rectangle, square): if rectangle.area() > square.area(): return "Rectangle has a greater area." elif rectangle.area() < square.area(): return "Square has a greater area." else: return "Both have the same area."

rectObj = Rectangle(8, 5) sqObj = Square(6)

print(compare(rectObj, sqObj)) #输出：“Rectangle has a greater area.”