简简单单的汉诺问题

#include <iostream>

using namespace std;

int main()
{
    void han_move(int n,char a,char b,char c);
    int n=1;
    char a='A',b='B',c='C';
    han_move(n,a,b,c);
    return 0;
}

void han_move(int n,char a,char b,char c)
{
    if(n==1){
        cout<<a<<"==>"<<b<<endl;
    }
    else{
        han_move(n-1,a,c,b);
        cout<<a<<"==>"<<b<<endl;
        han_move(n-1,c,b,a);
    }
}