def Area_of_circle(r):
Area = math.pi (float(r)*2)
print('circle\'s area : %.2f \n' % Area)
while True:
r = input('Please enter circle\'s radius: ')
if r == 'exit':
print('End')
break
Area_of_circle(r)
2、 计算数列的和
sum = 0
n = int(input('Please enter the number you need to calculate :'))
def Sum_of_numble(n):
sum =(1 + n)*n/2
print('The sum of this series is: %d' % sum)
if n >0:
Sum_of_numble(n)
枫澜-ye
1、圆的面积
import math
Area = 0
def Area_of_circle(r): Area = math.pi (float(r)*2) print('circle\'s area : %.2f \n' % Area) while True: r = input('Please enter circle\'s radius: ') if r == 'exit': print('End') break Area_of_circle(r)
2、 计算数列的和 sum = 0 n = int(input('Please enter the number you need to calculate :'))
def Sum_of_numble(n): sum =(1 + n)*n/2 print('The sum of this series is: %d' % sum) if n >0: Sum_of_numble(n)