详解C＃枚举中使用Flags特性

[Flags]
    public enum Show
    {
        A = 0x00000001,
        B = 0x00000010,
        C = 0x00000100,
        D = 0x00001000,
    }

Show show = Show.A | Show.B

 Show show=Show.A | Show.B;
  show.HasFlag(Show.A);
  //其他
  bool 包含 = (show & Show.A)!=0;

Show show=Show.A | Show.B;
  show=show & (~Show.A);

 Show show = Show.A | Show.B;
  bool 包含 = (show & Show.A)!=0;
  if(包含)
  {
     show=show & (~Show.A);
  }
  else
  {
     show=show | Show.A;
  }