C语言 逆序数

#include<stdio.h>
int main(){ 
	int Reverse(int x);
	int x;
	printf("请输入一个整数：");
	scanf("%d",&x);
	printf("逆序数为：%d",Reverse(x));
	return 0;
}

int Reverse(int x){ 	
	int rev=0;
	while(x!=0) { 	//以x=123为例 ,纵向读 
		rev*=10;	//rev=0 * rev=30 * rev=320 *
		rev+=x%10;	//rev=0+3=3 * rev=30+2=32 * rev=320+1=321 *
		x/=10;		//x=12 * x=1 * x=0 *
	}
	return rev;
}