data.py 文件源码

def imaginary(self):
                        if hasattr(self, '_m_imaginary'):
                            return self._m_imaginary if hasattr(self, '_m_imaginary') else None

                        z = cmath.rect(self.magnitude, self.angle)
                        self._m_real, self._m_imaginary = z.real, z.imag
                        return self._m_imaginary if hasattr(self, '_m_imaginary') else None