Question

class Complex(object):
    def __init__(self, real, imaginary):
        self.real=real
        self.imaginary=imaginary  
    def __add__(self, no):
        self.real=self.real+no.real
        self.imaginary=self.imaginary+no.imaginary
    def __str__(self):
        if self.imaginary == 0:
            result = "%.2f+0.00i" % (self.real)
        else:
            result = "%.2f+%.2fi" % (self.real, self.imaginary)

我想以 str 方法中定义的格式在添加函数内打印两个复数的和，而不需要操作 str 函数。这意味着如何从添加方法访问 str 方法中定义的结果变量。

Answer 1

如果我正确理解您的问题，您希望在添加中打印 str 方法的结果。所以我认为这是最好的决定：

class Complex(object):
def __init__(self, real, imaginary):
    self.real = real
    self.imaginary = imaginary

def __add__(self, no):
    self.real = self.real + no.real
    self.imaginary = self.imaginary + no.imaginary
    print(str(self))

def __str__(self):
    if self.imaginary == 0:
        result = "%.2f+0.00i" % (self.real)
    else:
        result = "%.2f+%.2fi" % (self.real, self.imaginary)
    return result

a = Complex(1, 2)
b = Complex(3, 4)
a + b

如何在python中的类中的某个其他函数中定义（变量）的函数内使用变量？

1 个答案: