Python Learning Notes (5)--class

1, empty class, Occupy space

1 class Animal (object): 2     Pass

2. Define __INIT__ () null

1 class Animal (object): 2     def __init__ (): 3         Pass

3. Declare name

class Animal (object):     def __init__ (self,name):         == Animal ('Jeffrey')print  zebra.name  #Jeffrey

4. Another def

classAnimal (object):"""makes cute animals."""is_alive=Truedef __init__(self, Name, age): Self.name=name Self.age= Age#Add your method here!    defdescription (self):PrintSelf.namePrintSelf.agehippo= Animal ('AA', 3). Description ()#AA#3

5. Inheritance

1 classShape (object):2     """makes shapes!"""3     def __init__(self, number_of_sides):4Self.number_of_sides =Number_of_sides5 6 #Add your Triangle class below!7 classTriangle (Shape):8     def __init__(SELF,SIDE1,SIDE2,SIDE3):9Self.side1 =Side1TenSelf.side2 =Side2 OneSelf.side3 = Side3

6, Inheritance. Replication

1 classEmployee (object):2     """Models real-life employees!"""3     def __init__(self, employee_name):4Self.employee_name =Employee_Name5 6     defcalculate_wage (Self, hours):7Self.hours =hours8         returnHours * 20.009 Ten #Add Your code below! One classParttimeemployee (Employee): A     defcalculate_wage (self,hours): -Self.hours =hours -         return12*hours

7. Super class

1 classEmployee (object):2     """Models real-life employees!"""3     def __init__(self, employee_name):4Self.employee_name =Employee_Name5 6     defcalculate_wage (Self, hours):7Self.hours =hours8         returnHours * 20.009 Ten #Add Your code below! One classParttimeemployee (Employee): A     defcalculate_wage (self,hours): -Self.hours =hours -         return12*hours the     deffull_time_wage (self,hours): -         returnSuper (Parttimeemployee,self) calculate_wage (Hours)#returns the parent class function -  -Milton = Parttimeemployee ('AA') + PrintMilton.full_time_wage (10) - # $

Example

classTriangle (object): Number_of_sides= 3def __init__(self,angle1,angle2,angle3): Self.angle1=angle1 Self.angle2=Angle2 Self.angle3=Angle3defcheck_angles (self):ifSelf.angle1+self.angle2+self.angle3 = = 180:            returnTrueElse:            returnFalsemilton= Triangle (60,60,60)Printmilton.check_angles ()#True

1 classTriangle (object):2Number_of_sides = 33     def __init__(self,angle1,angle2,angle3):4Self.angle1 =Angle15Self.angle2 =Angle26Self.angle3 =Angle37     defcheck_angles (self):8         ifSelf.angle1+self.angle2+self.angle3 = = 180:9             returnTrueTen         Else: One             returnFalse A              - classequilateral (Triangle): -Angle = 60 the     def __init__(self): -Self.angle1 =Self.angle -Self.angle2 =Self.angle -Self.angle3 =Self.angle +My_triangle = triangle (60,60,60) - PrintMy_triangle.number_of_sides + PrintMy_triangle.check_angles ()

Python Learning Notes (5)--class