python怎么将整数反转输出

//x int 要反转的数字

//反转之后结果的地址，指针变量，初始值为0

void reverseRecursion(int x,int *res)

{

    if(x==0) return ;

    int tmp=x%10;

    x = x/10;

    if( *res>INT_MAX/10 || (*res==INT_MAX/10 && (tmp)>7) ){

        *res=0;

        return ;

    }else if( *res<INT_MIN/10 || (*res==INT_MIN/10 && (tmp)<-8) ){

        *res=0;

        return ;

    }else {

        *res = *res * 10 + tmp;

        reverseRecursion(x, res);

    }

}

//调用递归方法

void main()

{

    int res=0;

    int x = 123456789;

    reverseRecursion(x,&res)

    printf("%d\n", res);

}

class Solution:

    def reverse(self, x):

        flag = 1

        if x < 0:

            flag = -1

            x = -x

        R = str(x)[::-1]

        R = int(R)

        if R> 2147483647 or R < -2147483648:

            R = 0

        return R*flag