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June 1, 2017 04:43
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Python, Object Oriented Programming -- Drill #01. Speed Up Your Car!
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| FORM_INTRO='''\ | |
| ================================= | |
| \tVEHICLE INFORMATION | |
| --------------------------------- | |
| 1. MODEL : %s (%s) | |
| 2. MAX SPEED : %d km/h | |
| 3. ACCELARAT : +_ %d kmh | |
| 4. STATUS : %d kmh | |
| ---------------------------------\n\n\n''' | |
| class Car(object): | |
| def __init__(self,arg_model): | |
| self.attr = { | |
| 'MODEL' : arg_model, | |
| 'KIND' : 'Normal', | |
| 'MAX_SPEED' : 130, | |
| 'SPEED' : 0, | |
| 'S_ABLE' : 20, | |
| } | |
| print('NEW CAR!! has come..........') | |
| print(self.__str__()) | |
| def __str__(self): | |
| self.intro = FORM_INTRO %( | |
| self.attr['MODEL'],self.attr['KIND'],self.attr['MAX_SPEED'], | |
| self.attr['S_ABLE'],self.attr['SPEED'], ) | |
| return self.intro | |
| def speed_up(self): | |
| self.attr['SPEED'] += self.attr['S_ABLE'] | |
| if self.attr['SPEED'] <= self.attr['MAX_SPEED']: | |
| print("%s: SPEED IS UP! .... NOW %s km/h" %(self.attr['MODEL'],self.attr['SPEED'],) ) | |
| else: | |
| self.attr['SPEED'] = self.attr['MAX_SPEED'] | |
| print("\nSORRY! SPEED IS LIMITED! @ %s km/h" %self.attr['SPEED']) | |
| print(self.__str__()) | |
| def speed_down(self): | |
| self.attr['SPEED'] -= self.attr['S_ABLE'] | |
| if self.attr['SPEED'] >= 0: | |
| print("%s: SPEED IS DOWN! .... NOW %s km/h" %(self.attr['MODEL'],self.attr['SPEED'],) ) | |
| else: | |
| self.attr['SPEED'] = 0 | |
| print("\nSORRY! CAR STOPPED! @ %s km/h" %self.attr['SPEED']) | |
| print(self.__str__()) | |
| class SportCar(Car): | |
| def __init__(self,arg_model): | |
| self.attr = { | |
| 'MODEL' : arg_model, | |
| 'KIND' : 'Racing', | |
| 'MAX_SPEED' : 300, | |
| 'SPEED' : 0, | |
| 'S_ABLE' : 60, | |
| } | |
| print('NEW CAR!! has come..........') | |
| print(self.__str__()) | |
| class Truck(Car): | |
| def __init__(self,arg_model): | |
| self.attr = { | |
| 'MODEL' : arg_model, | |
| 'KIND' : 'Truck', | |
| 'MAX_SPEED' : 80, | |
| 'SPEED' : 0, | |
| 'S_ABLE' : 10, | |
| } | |
| print('NEW CAR!! has come..........') | |
| print(self.__str__()) | |
| class Cart(Car): | |
| def __init__(self,arg_model): | |
| self.attr = { | |
| 'MODEL' : arg_model, | |
| 'KIND' : 'Cart?', | |
| 'MAX_SPEED' : 5, | |
| 'SPEED' : 0, | |
| 'S_ABLE' : 1, | |
| } | |
| print('NEW CAR has come..........!!?? Crazy??') | |
| print(self.__str__()) |
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| from package_i.model_car import * | |
| a = Car('ACCENT') | |
| b = Car('ODYSSAY') | |
| a.speed_up() | |
| a.speed_up() | |
| a.speed_up() | |
| a.speed_up() | |
| a.speed_up() | |
| a.speed_up() | |
| a.speed_up() | |
| b.speed_up() | |
| b.speed_up() | |
| b.speed_up() | |
| print() | |
| b.speed_down() | |
| b.speed_down() | |
| b.speed_down() | |
| b.speed_down() | |
| c = SportCar('Porsche') | |
| d = Truck('Scannia') | |
| e = Cart('SuperMarket') |
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Result.
Short, simple, approachable, relaxing, OOP example!