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#1 Created at ... [Delete] [Delete and Lock User]

def is_palindrome(n):

return str(n)==str(n)[::-1]

#2 Created at ... [Delete] [Delete and Lock User]

不错

#3 Created at ... [Delete] [Delete and Lock User]

好理解

#4 Created at ... [Delete] [Delete and Lock User]

学习了，感谢

#5 Created at ... [Delete] [Delete and Lock User]

#6 Created at ... [Delete] [Delete and Lock User]

    这个怎么理解[::-1]

#7 Created at ... [Delete] [Delete and Lock User]

没有用到fitter啊？