数据分离和逆序输出

// 数据分离和逆序输出.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include "stdio.h"
#include "stdlib.h"



int Getwei(int  num)
{
	// 12345 /10 1234 /10 123 10 /12 /10 1 /10 0
	int wei=0;
	for (;num;num/=10)
	{
		wei++;
		
	}
   return wei;
}
int get10N(int num)
{
	// num=3 
	int res=1;
	for (int i=0;i<num;i++)
	{
		res=res*10;

	}
	return res;
}

int  nixu(int num,int wei)
{

	int last=0;
	
	for (int i=0;i<wei;i++)
	{
		int shu=0;
		shu=num%10;
		num/=10;
		
		last+=shu*get10N(wei-1-i);
		printf("shu=%d,i=%d,wei-1-i=%d,last=%d\n",shu,i,wei-1-i,last);
		
	}
	return last;

}

void main()
{//12345 10000 2000 300 40 5
	int num;
	scanf("%d",&num);
	printf("原始num=%d\n",num);
	int wei=Getwei(num);
	printf("wei=%d\n",wei);
	int res=get10N(wei);
	int last=0;
	last=nixu(num,wei);
	
	printf("last=%d\n",last);






	system("pause");
}