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21 lines
570 B
21 lines
570 B
'''
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给出一个有符号正整数，你需要将这个整数中每位上的数字进行反转。
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示例 1: 输入: 123 输出: 321
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示例 2: 输入: 714 输出: 417
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示例 3: 输入: 120 输出: 21
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'''
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class Solution(object):
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def reverse(self,x):
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"""
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:type x: int
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:rtype: int
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"""
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ans = 0
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while x:
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ans = ans*10 + x%10 # 不断取x/10的余数
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x //= 10
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if x < 1: break
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return ans
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print ( Solution().reverse( 123 ) ) |