def is_palindrome(n):
m=str(n)
flag=True
for i in range(len(m)):
if m[i]!=m[len(m)-1-i]:
flag=False
return flag
第5行:可省略 len(m)
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def is_palindrome(n):
m=str(n)
flag=True
for i in range(len(m)):
if m[i]!=m[len(m)-1-i]:
flag=False
return flag