循环
给定一个数a,求s=a+aa+aaa+aaaa+aaaaa的值,其中a是一个数字(1-9之间)例如2+22+222222221。用for循环和while求解
，各位大佬给点思路。谢谢！[此贴子已经被作者于2018-11-17 21:32编辑过]
def getSum(a,count = 4):
result = a
previous = a
for i in range(count - 1):
previous = previous * 10 + a
result += previous
return result
