Python プログラミングの基本（Python Tutor，VisuAlgo を使用）（スライド資料とプログラム例）（全９回）

class Ball:
    def __init__(self, x, y, r, color):
        self.x = x
        self.y = y
        self.r = r
        self.color = color
    def printout(self):
        print(self.x, self.y, self.r, self.color)

a = Ball(8, 10, 1, "blue")
b = Ball(2, 4, 3, "green")
a.printout()
b.printout()

class Ball:
    def __init__(self, x, y, r, color):
        self.x = x
        self.y = y
        self.r = r
        self.color = color
    def printout(self):
        print(self.x, self.y, self.r, self.color)
    def dist(self):
        return self.x + self.y

a = Ball(8, 10, 1, "blue")
b = Ball(2, 4, 3, "green")
a.printout()
b.printout()
print(a.dist())

class Ball:
    def __init__(self, x, y, r, color):
        self.x = x
        self.y = y
        self.r = r
        self.color = color
    def printout(self):
        print(self.x, self.y, self.r, self.color)
    def dist(self):
        return self.x + self.y
    def move(self, xx, yy):
        self.x = self.x + xx;
        self.y = self.y + yy;
        
a = Ball(8, 10, 1, "blue")
b = Ball(2, 4, 3, "green")
a.move(5, 5)
b.move(10, 10)
a.printout()
b.printout()
print(a.dist())

class Ball:
    def __init__(self, x, y, r, color):
        self.x = x
        self.y = y
        self.r = r
        self.color = color
    def printout(self):
        print(self.x, self.y, self.r, self.color)
    def dist(self):
        return self.x + self.y
    def move(self, xx, yy):
        self.x = self.x + xx;
        self.y = self.y + yy;
    def right(self, xx):
        self.move(xx, 0)
    def left(self, xx):
        self.move(-xx, 0)
        
a = Ball(8, 10, 1, "blue")
b = Ball(2, 4, 3, "green")
a.move(5, 5)
b.move(10, 10)
a.right(5)
b.left(10)
a.printout()
b.printout()
print(a.dist())

class Point:
    def __init__(self, x, y, color):
        self.x = x
        self.y = y
        self.color = color
    def printout(self):
        print(self.x, self.y, self.color)

class Ball(Point):
    def __init__(self, x, y, r, color):
        super(Ball, self).__init__(x, y, color)
        self.r = r
    def printout(self):
        print(self.x, self.y, self.r, self.color)

p = Point(1, 2, "red")
p.printout()       
a = Ball(8, 10, 1, "blue")
b = Ball(2, 4, 3, "green")
a.printout()
b.printout()

class Point:
    def __init__(self, x, y, color):
        self.x = x
        self.y = y
        self.color = color
    def printout(self):
        print(self.x, self.y, self.color)
    def reset(self):
        self.x = 0
        self.y = 0

class Ball(Point):
    def __init__(self, x, y, r, color):
        super(Ball, self).__init__(x, y, color)
        self.r = r
    def printout(self):
        print(self.x, self.y, self.r, self.color)

p = Point(1, 2, "red")
p.printout()       
a = Ball(8, 10, 1, "blue")
b = Ball(2, 4, 3, "green")
a.reset()
b.reset()
a.printout()
b.printout()