class mac_address
{
public:
    mac_address()
    {
        for (int i = 0; i < 6; i++)
        {
            _raw[i] = 0;
        }
    }
    unsigned char _raw[6];
    std::string to_string( char split = '-' ) const;
    bool parse( const std::string & formatted, char split = '-' );

    bool operator == ( const mac_address & mac ) const;
    bool operator != ( const mac_address & mac ) const;
    bool operator <  ( const mac_address & mac ) const;
};

public class mac_address
{
    private char _raw[6];
    public mac_address()
   {
         _raw[i] = 0;
   }
   public static bool operator==(mac_address add)
   {}
    ...........类似这样的
}

c#里好像没有这种_raw[6]格式的

char []_raw=new char[6]也可以，要是感觉那个不顺眼~

std::string to_string( char split = '-' ) const;
    bool parse( const std::string & formatted, char split = '-' );
这两句要怎么转换呢？

没人知道答案吗，小弟急需解答啊

这两句C的代码看不懂~

应该是这样的吧：
public string to_string(char split)
{
    split='-';
    return;
}
public bool parse(string format,char split)
{
   split='-';
   return;
}
你试试可以吗？具体就不能帮你测试了～