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class Car():
def __init__(self,make,model,year):
self.make = make
self.model = model
self.year = year
self.odometer_reading = 0
def get_descriptive_name(self):
long_name = str(self.year) + '' + self.make + '' + self.model
return long_name.title()
def read_odometer(self):
print('This car has' + str(self.odometer_reading) + 'mils on it.'
my_new_car = Car('audi', 'a4', 2016)
print(my_new_car.get_descriptive_name())
my_new_car.read_odometer()
代码如上，想知道哪里错了
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