十进制数long以二进制和十六进制形式输出

void Binary(long n)
{
    char c;
    if (n/2 != 0)
    {
        Binary(n/2);
        c = n %2 + 48;
        putch(c);
    }
    else
    {
        putchar(n+48);
    }
}

void Hex(long n)
{
    char c;
    if (n / 16 != 0)
    {
        Hex(n/16);
        if (n % 16 >= 0 && n % 16 <= 9)
        {
            c = n % 16 + 48;
            putchar(c);
        }
        else
        {
            c = n % 16 - 10 + 97;
            putchar(c);
        }
    }
    else
    {
        if (n % 16 >= 0 && n % 16 <= 9)
        {
            c = n % 16 + 48;
            putchar(c);
        }
        else
        {
            c = n % 16 - 10 + 97;
            putchar(c);
        }
    }
}

int main()
{
    long n = 65535;
    Binary(n);
    cout<<endl;
    Hex(n);
    cout<<endl;

    return 0;
}