Input the radius of the circle : 1.1 The area of the circle with radius 1.1 is: 3.8013271108436504 Explanation:The said code calculates the area of a circle based on the radius entered by the user. The code uses the "math" module's pi constant and the "input" function to get the radiu...
提示 在代码清单3-2中,第1～3行是CalCircleArea函数的定义,其只有一个参数r,表示要计算面积的圆的半径。第4～6行是CalRectArea函数的定义,其有两个参数a和b(多个形参需要用逗号分隔),表示要计算面积的长方形的两个边长。
#CaCircleArea.py r = 25 area = 3.1515 * r * r print(area) print("{:.2f}".format(area)) 结果输出 绘制五角星: #DrawStar.py from turtle import * color('red','red') begin_fill() for i in range(5): fd(200) rt(144) end_fill() done() 运行结果: 程序运行计时: #CalRunTime.p...
def AreaPerimeter (height, width): height = int(height) width = int(width) area = height * width perimeter = (2 * height) + (2 * width) print "The area is:" + area print (The perimeter is:" + perimeter return while True: h = raw_input("Enter height:") w = raw_input("Ent...
吸引他们在一起的,不是Python的“人缘广”,也不是HTML的“花里胡哨”,而是他们为了一件事愿意携起手来共同创造价值的魅力。
fname = 'C:/Users/Tencent_Go/Desktop/python/area/uscnty48area.shp' mapdata = shapex(fname) print(f"The number of regions: {len(mapdata)}") 然后我们可以看到 regions 的数量为:3109 然后我们看一下列表 mapdata 中字典的数据结构。我们将使用递归函数输出字典中的所有键。
$ rpn.py 90 pi 180 / mul sin 1.0 # Area of a circle radius 10 $ rpn.py 'pi 10 10 * *' 314.1592653589793 # Equivalently, using ':2' to push 10 onto the stack twice. $ rpn.py 'pi 10:2 * *' 314.1592653589793 # Equivalently, using 'dup' to duplicate the 10 and 'mul' instea...
Python Code: defsectorarea():pi=22/7radius=float(input('Radius of Circle: '))angle=float(input('angle measure: '))ifangle>=360:print("Angle is not possible")returnsur_area=(pi*radius**2)*(angle/360)print("Sector Area: ",sur_area)sectorarea() ...
#area of circlearea = pi*(radius**2)radius=radius+1 an assignment expression on the right,evaluated to a value variable name on the left equivalent expression to radius=radius+1 is radius +=1 The equal sign is not like in math where you can have a lot of things to the left and a...
(c) for c in np.random.randint(0, 255, 3)] cv2.circle(canvas, pt, 3, pt_color, 5) # 在左半部分最上方打印文字 cv2.putText(canvas, 'Python-OpenCV Drawing Example', (5, 15), cv2.FONT_HERSHEY_SIMPLEX, 0.5, (0, 0, 0), 1) cv2.imshow('Example of basic drawing functions', ...