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What is the difference between str and repr?（28回答）
昨天关门了。
我想做一个Polar数的类，而不使用为我做所有工作的库。我想做一个 pow 函数。当Polar数被提升到0和1之间的幂时，你会期望多个结果，问题是我的代码表现得像一个生成器，我认为它不应该。

import math

def sin(x,/):
    return math.sin(math.radians(x))

def cos(x,/):
    return math.cos(math.radians(x))

def arctan(x,/):
    return math.degrees(math.atan(x))

class polar():
    def __init__(self, complex_num,angle=None):
        if angle != None:
            self.r = complex_num
            self.alpha = angle
        elif type(complex_num) in (float, int, complex):
            complex_num = complex(complex_num)
            self.r = ((complex_num.real**2)+(complex_num.imag**2))**0.5
            if complex_num.real != 0:
                if complex_num.imag > 0 and complex_num.real > 0:
                    self.alpha = arctan(complex_num.imag/complex_num.real)
                elif complex_num.imag > 0 and complex_num.real < 0:
                    self.alpha = 180-(arctan(complex_num.imag/abs(complex_num.real)))
                elif complex_num.imag < 0 and complex_num.real < 0:
                    self.alpha = 180+(arctan(abs(complex_num.imag)/abs(complex_num.real)))
                else:
                    self.alpha = 360-(arctan(abs(complex_num.imag)/complex_num.real))
            else:
                if complex_num.real > 0:
                    self.alpha = 90
                else:
                    self.alpha = 270
        while self.alpha >= 360:
            self.alpha -=360
        while self.alpha < 0:
            self.alpha += 360
            

    def __pow__(self,exponent):
        result = []
        if type(exponent) not in (int,float):
            raise TypeError("Exponent must be a number")
        if exponent == 0:
            return polar(1,0)
        elif exponent == 1:
            return self
        elif exponent > 1 or exponent < 0:
            return polar(self.r**exponent, self.alpha*exponent)
        else:
            index = int(1/exponent)
            for i in range(index):
                alpha = (self.alpha/index) + ((360/index)*i)
                result.append(polar(self.r**exponent, alpha))
            return result
                
            
            
    def __str__(self) -> str:
        return f"{self.r} {self.alpha}º"
    
    def complexToPolar(polar_num: str,/):
        try:
            polar_num = polar_num.replace("º","")
            polar_num = polar_num.split()
            r = float(polar_num[0])
            alpha = float(polar_num[1])
            z = r*(cos(alpha)+sin(alpha)*1j)
            return z
        except:
            raise Exception(TypeError)

print(polar(0-243j)**(1/5)

我尝试使用yield，但变量“i”根本没有递增，所以我可以得到第一个结果，但不是所有结果，预期结果是：[3.0 54.0º, 3.0 126.0º, 3.0 198.0º, 3.0 270.0º, 3.0 342.0º]但我得到的是：[<__main__.polar object at 0x00000198710D66D0>, <__main__.polar object at 0x00000198710D6690>, <__main__.polar object at 0x00000198710D68D0>, <__main__.polar object at 0x00000198710D65D0>, <__main__.polar object at 0x00000198710D6850>]