# Python program to find the# area and perimeter of circle in python# Initialising the value of PIPI=3.14# Getting input from userR=float(input("Enter radius of the circle: "))# Finding the area and perimeter of the circlearea=(PI*R*R)perimeter=(2*PI*R)# Printing the area and peri...
pygame.draw.line(DISPLAYSURF, BLUE, (60,120), (120,120),4) pygame.draw.circle(DISPLAYSURF, BLUE, (300,50),20,0) pygame.draw.ellipse(DISPLAYSURF, RED, (300,250,40,80),1) pygame.draw.rect(DISPLAYSURF, RED, (200,150,100,50)) pixObj = pygame.PixelArray(DISPLAYSURF) pixObj[480]...
rt(t, step_angle/2) def circle(t, r): """Draws a circle with the given radius. t: Turtle r: radius """ arc(t, r, 360) # the following condition checks whether we are # running as a script, in which case run the test code, # or being imported, in which case don't. if...
Try to sleep on it or make a drawing of the program flow. Note: The @timer decorator is great if you just want to get an idea about the runtime of your functions. If you want to do more precise measurements of code, then you should instead consider the timeit module in the standard...
如果一个对象从shape类继承,它也将继承那些部分。它不一定用那些零件,但它有。它可能有额外的部分(例如,circle对象可能有一个radius值),但是它总是有那些部分。如果你开始在编程中使用类,Python 比它的同类,如 C++或 Java,更容易理解。您几乎可以用语法object.attribute命名任何对象或方法,无论该属性是对象还是...
turtle.circle(radius, extent=None)函数的作用是绘制一个椭圆形,extent参数可选 D turtle.pensize(size)函数的作用是改变画笔的宽度为size像素 正确答案 C circle()函数不能绘制椭圆形。 6 1分 ...
class Circle: def __init__(self, radius): self._radius = radius @property def radius(self): # Getter method for the radius. return self._radius @property def area(self): # Getter method for the area. return 3.14 * self._radius**2 ...
for c in Circle.all_circles: total = total + c.area() return total c1 = Circle(1) print(c1.area()) # 3.14159 c2 = Circle(2) print(c2.area()) # 12.56636 print(Circle.total_area()) # 15.70795 Private variables and private methods: ...
def circle_area(r): return PI * r ** 2 class Person(object): def __init__(self, name): self.name = name def say(self): print('i am', self.name) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 然后调用compile函数来编译源码: ...
Define a class named Circle which can be constructed by a radius. The Circle class has a method which can compute the area. Hints: Use def methodName(self) to define a method. Solution: class Circle(object): def __init__(self, r): self.radius = r def area(self): return self.radi...