结果和代码 这里只涉及一个办法

方法部分

def main():
    rX, rY = eval(input("Enter regular polygon x and y axis:"))
    regular_num = eval(input("Enter regular number: "))
    side_long = eval(input("Enter side number: "))
    a = exCode07.RegularPolygon(regular_num, side_long,rX, rY)
    print(f"x: {rX} y: {rY} regular polygon  area is {a.getArea()} and perimeter{a.getPerimeter()}")


main()

类部分

class RegularPolygon:
    def __init__(self, n, side, x, y):此处没写默认值
    def __init__(self, n=3, side=1, x=0, y=0): 此处有默认值，别两个一起弄。哈哈哈

        self.n = n
        self.side = side
        self.x = x
        self.y = y

    def get_x(self):
        return self.x

    def set_x(self, x):
        self.x = x

    def get_y(self):
        return self.y

    def set_y(self, y):
        self.y = y

    def get_n(self):
        return self.n

    def set_n(self, n):
        self.n = n

    def get_side(self):
        return self.side

    def set_side(self, y):
        self.y = y

    def getArea(self):
        area_num1 = self.n * pow(self.side, 2)
        **注意这里别用// 
        area_num2 = 4 * math.tan(math.pi / self.n)
        area_total = area_num1 / area_num2
        return area_total

    def getPerimeter(self):

按书上要求的写三个对象

def main_2():
    a = exCode07.RegularPolygon()
    b = exCode07.RegularPolygon(6, 4)
    c = exCode07.RegularPolygon(10, 4, 5.6, 7.8)
    print(f"x: {a.x} y: {a.y} regular polygon  area is {a.getArea()} and perimeter{a.getPerimeter()}")
    print(f"x: {b.x} y: {b.y} regular polygon  area is {b.getArea()} and perimeter{b.getPerimeter()}")
    print(f"x: {c.x} y: {c.y} regular polygon  area is {c.getArea()} and perimeter{c.getPerimeter()}")