加减乘除汽车代码

def functionAdd(num1,num2): 
    return num1+num2
def functionSub(num1,num2): 
    return num1-num2
def functionMul(num1,num2): 
    return num1*num2
def functionDiv(num1,num2): 
    if not num2:
        return 99999
    return num1/num2

if __name__=='__main__':
    
    num1= int(input('Please input a  number:'))  
    num2= int(input('Please input a  number:'))
    
    
    print(functionAdd(num1,num2))
    print(functionSub(num1,num2))
    print(functionMul(num1,num2))
    
    
    divResult =functionDiv(num1,num2)
    if divResult ==99999:
        print('the second is zero...wrong input')
    else:
        print(functionDiv(num1,num2))

汽车代码

class Car():
    '''
    kind : 
    length ：
    weight ：
    '''
    def __init__(self,kind='BMW',length=4.5,weight=1.6):
        self.kind=kind
        self.length=length
        self.__weight=weight #__weight 
        
   
    def showWeight(self):
        return self.__weight
    
BMW=Car()

print(BMW.kind)
print(BMW.showWeight())
print(BMW.length)