我是一步步按照書寫的，原代碼如下：
class Car():
"""該程式主要用于一次模擬汽車的簡單嘗試"""
def __init__(self, make, model, year):
"""初始化描述汽車的屬性"""
self.make = make
self.model = model
self.year = year
self.odometer_reading = 0
def get_descriptive_name(self):
"""回傳整潔的描述性名稱"""
long_name = f"{self.year} {self.make} {self.model}"
return long_time.title()
def road_odometer(self):
"""列印出一條資訊，指出汽車的里程"""
print(f"This car has {self.odometer_reading} miles on it.")
def update_odometer(self, mileage):
"""
將里程表讀數設定為指定的值，
并拒絕將里程表往回呼。
"""
if mileage >= self.odometer_reading:
self.odometer_reading = mileage
else:
print("You can't roll back an odometer!")
def increment_odometer(self, miles):
"""將里程表讀數增加指定的量"""
self.odometer_reading += miles
my_new_car=Car('audi','a4',2019)
print (my_new_car.get_descriptive_name())
pycharm和jupter的錯誤顯示：
NameError Traceback (most recent call last)
<ipython-input-8-abd31ead77cc> in <module>
2
3 my_new_car=Car('audi','a4',2019)
----> 4 print (my_new_car.get_descriptive_name())
5
~\Desktop\大資料\第二周 類\car.py in get_descriptive_name(self)
11 """列印出一條資訊，指出汽車的里程"""
12 print(f"This car has {self.odometer_reading} miles on it.")
---> 13
14 def update_odometer(self, mileage):
15 """
NameError: name 'long_time' is not defined
我換成long_name = "{} {} {}".format(self.year, self.make, self.model)還是不行。。
求大佬救命！！
uj5u.com熱心網友回復：
def get_descriptive_name(self):... """回傳整潔的描述性名稱"""
... long_name = f"{self.year} {self.make} {self.model}"
... return long_name.title()
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