63.取一个整数a从右端开始的4～7位。

​//输入一个数据后用“/”和“%”分离
 
#include<iostream>
using namespace std;
 
int main()
{
    int temp1,temp2;
    double n;
 
    begin:
    cout<<"please input an number:"<<endl;
    cin>>n;
 
    if(n<1000000)
    {
        cout<<"wrong input, please try again!"<<endl;
        goto begin;
    }else
    {
        temp1=n/1000;
        for(int i=4;i<=7;i++)
        {
            temp2=temp1%10;
            cout<<"第"<<i<<"位是："<<temp2<<endl;
            temp1=temp1/10;
        }
    }
 
    return 0;
}