我写成这样：
#include "iostream.h"
#include "stdio.h"
int main()
{
    int a,b,c,d,e,g;
    cout<<"请输入你想要打出的自然数头和尾"<<endl;
    cin>>a>>b;
    if(a==b)
    {
        cout<<a;
    }
    else
    {
        if(a>b)
        {
            a=c;
            b=d;
        }
        else
        {
            b=c;
            a=d;
        }
        cout<<d<<" ";
        for(int f=2;d<c;f++)
        {
            d=d+1;
            cout<<d;
            e=f/10;
            g=f-e*10;
            if(g=0)
            {
                cout<<endl;
            }
            else
            {
                cout<<" ";
            }
        }
        cout<<c;
    }
    getchar();
    return 0;
}
究竟哪里错了呢？为什么没有按我的意思执行？

谢谢你们.