间谍游戏：用Arduino制作硬件键盘记录器

= ALTGR;                        }                        c=0;                        if(state& MODIFIER) {                                switch(s) {                                  case0×70: c= PS2_INSERT;      break;                                  case0x6C: c= PS2_HOME;        break;                                  case0x7D: c= PS2_PAGEUP;      break;                                  case0×71: c= PS2_DELETE;      break;                                  case0×69: c= PS2_END;         break;                                  case0x7A: c= PS2_PAGEDOWN;    break;                                  case0x75:c =PS2_UPARROW;     break;                                  case0x6B: c= PS2_LEFTARROW;   break;                                  case0×72: c= PS2_DOWNARROW;   break;                                  case0×74: c= PS2_RIGHTARROW;  break;                                  case0x4A: c= '/';            break;                                  case0x5A: c= PS2_ENTER;       break;                                  default:break;                                }                        }elseif (state & (SHIFT_L 

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