calc里带了self但还是报错calc缺self

Question

class Calculator:
    def __init__(self,num1,op,num2):
        self.num1=num1
        self.op=op
        self.num2=num2
    def calc(self):
        if self.op=='+':
            return self.num1+self.num2
        elif self.op=='-':
            return self.num1-self.num2
        elif self.op=='*':
            return self.num1*self.num2
        elif self.op=='/':
            return self.num1/self.num2
a,b,c=input().split()
a=int(a)
c=int(c)
s=Calculator
print('{}{}{}={}'.format(a,b,c,s.calc()))

Answer 1

s=Calculator(a,b,c)

你的类在实例化时没有传参进去