def is_palindrome(n): L = str(n) L1 = L[::-1] return L == L1
output = filter(is_palindrome, range(1, 1000)) print(list(output))
为什么用str（n）
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单身旺2016
def is_palindrome(n): L = str(n) L1 = L[::-1] return L == L1
output = filter(is_palindrome, range(1, 1000)) print(list(output))