在python中向变量添加新行字符

Adding a new line character to a variable in python

本问题已经有最佳答案，请猛点这里访问。

我有下面的函数来获得下面的输出

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22
4444
666666

相反，我正在

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'22
4444
666666
88888888
'

你知道我哪里出错了吗？

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def EvenLadder(n):
...: solution = ''
...: if n <= 1:
...: return solution
...: elif n%2 ==0:
...: for i in range(2,n+1,2):
...: solution += (str(i)*i)+"
"
...: else:
...: n = n - 1
...: for i in range(2,n+1,2):
...: solution += (str(i)*i)+"
"
...: return solution