Python：多边形的面积

Question

我做错了什么，我已经坚持了几个小时。 我正在尝试计算多边形的面积并使用循环来打印值表。 我正在使用蟒蛇

# This program computes 
# the area of polygons
import math

def main():
    side_length = get_side_length()
    report (side_length)

def report( side_length ):
    length = side_length(get_side_length)
    print('Side Length     Number of Sides     area')

def polygon_area( num_sides, side_length ):
    for num_sides in range(3, 10):
        area = (num_sides * side_length * side_length) \
        / (4 * math.tan(math.pi / num_sides)) 


def get_side_length():
    side_length = int(input( 'Input the length of a side '))
    return side_length


# start the program
main()

Answer 1

这里有很多事情要做，尽管您的问题可能更适合https://codereview.stackexchange.com/ ，但这里有一种方法可以完成它：

# This program computes 
# the area of polygons
import math

def main():
    side_length = get_side_length()
    for number_of_sides in range(3, 10):
        report (side_length, number_of_sides)

def report(side_length, number_of_sides):
    area = polygon_area(number_of_sides, side_length)
    print('Side Length: {0}    Number of Sides: {1} Area: {2}'.format(side_length, number_of_sides, area))

def polygon_area( num_sides, side_length ):
    area = (num_sides * side_length * side_length) / (4 * math.tan(math.pi / num_sides)) 

def get_side_length():
    return int(input( 'Input the length of a side '))

# start the program
main()

Answer 2

def report( side_length ):
    length = side_length(get_side_length)
    print('Side Length     Number of Sides     area')

这个块的中间线很奇怪。 side_length是作为参数传递的数字，但是您似乎试图将其作为函数调用。 删除那行就行了。

您从不调用polygon_area ，也从不使用它计算的值。 我猜您想将该代码移动到report并使其打印结果？