【Python 第50课】 面向对象（4）

fptxyy

老师，
我写的代码与您一样，可是运行到，class Bike(Vehicel):就出问题了。代码及问题如下：
# -*- coding: cp936 -*-
class Vehicle:
    def _init_(self,speed):
        self.speed=speed
        
    def drive(self,distance):
        print"need %f hours(s)" %(distance/self.speed)

class Bike(Vehicel):
    pass

class Car(Vehicle):
    def _init_(self,speed,fuel):
        Vehicle._init_(self,speed)
        self.fuel=fuel

    def drive(self,distance):
        Vehicle.drive(self,distance)
        print"need %f fuels"%(distance*self.fuel)

b=Bike(15.0)
c=Car(80.0,0.012)
b.drive(100.0)
c.drive(100.0)
－－
>>> = RESTART =
>>>

Traceback (most recent call last):
  File "C:/Python27/作业题/lesson50class.py", line 9, in <module>
    class Bike(Vehicel):
NameError: name 'Vehicel' is not defined
>>> 是怎么回事呢，恳请老师解答~

fptxyy

crossin先生 发表于 2014-4-3 17:39
你拼成了 Vehicel

是啊，感谢老师！真是太惭愧了， 竟然没看出来  
送花 * * *