反转一个整数,例如-123 --> -321

2020-01-31T11:19:34
class Solution(object):
    def reverse(self,x):
        if -10<x<10:
            return x
        str_x = str(x)
        if str_x[0] !="-":
            str_x = str_x[::-1]
            x = int(str_x)
        else:
            str_x = str_x[1:][::-1]
            x = int(str_x)
            x = -x
        return x if -2147483648<x<2147483647 else 0
if __name__ == '__main__':
    s = Solution()
    reverse_int = s.reverse(-120)
    print(reverse_int)
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