keycode 1 = 鼠标左键
keycode 2 = 鼠标右键
keycode 3 = Cancel
keycode 4 = 鼠标中键
keycode 8 = BackSpace
keycode 9 = Tab
keycode 12 = Clear（未知）
keycode 13 = Enter
keycode 16 = Shift_L
keycode 17 = Control_L
keycode 18 = Alt_L
keycode 19 = Pause
keycode 20 = Caps_Lock
keycode 27 = Escape
keycode 32 = space
keycode 33 = Prior（PageUp键）
keycode 34 = Next（PageDown键）
keycode 35 = End
keycode 36 = Home
keycode 37 = Left
keycode 38 = Up
keycode 39 = Right
keycode 40 = Down
keycode 41 = Select（未知）
keycode 42 = Print（PrintScreen键）
keycode 43 = Execute（未知）
keycode 45 = Insert
keycode 46 = Delete
keycode 47 = Help（未知）
keycode 48 = 0 equal braceright
keycode 49 = 1 exclam onesuperior
keycode 50 = 2 quotedbl twosuperior
keycode 51 = 3 section threesuperior
keycode 52 = 4 dollar
keycode 53 = 5 percent
keycode 54 = 6 ampersand
keycode 55 = 7 slash braceleft
keycode 56 = 8 parenleft bracketleft
keycode 57 = 9 parenright bracketright
keycode 65 = a A
keycode 66 = b B
keycode 67 = c C
keycode 68 = d D
keycode 69 = e E EuroSign
keycode 70 = f F
keycode 71 = g G
keycode 72 = h H
keycode 73 = i I
keycode 74 = j J
keycode 75 = k K
keycode 76 = l L
keycode 77 = m M mu
keycode 78 = n N
keycode 79 = o O
keycode 80 = p P
keycode 81 = q Q at
keycode 82 = r R
keycode 83 = s S
keycode 84 = t T
keycode 85 = u U
keycode 86 = v V
keycode 87 = w W
keycode 88 = x X
keycode 89 = y Y
keycode 90 = z Z
keycode 96 = KP_0 KP_0 (keypad number 0)
keycode 97 = KP_1 KP_1 (keypad number 1)
keycode 98 = KP_2 KP_2 (keypad number 2)
keycode 99 = KP_3 KP_3 (keypad number 3)
keycode 100 = KP_4 KP_4 (keypad number 4)
keycode 101 = KP_5 KP_5 (keypad number 5)
keycode 102 = KP_6 KP_6 (keypad number 6)
keycode 103 = KP_7 KP_7 (keypad number 7)
keycode 104 = KP_8 KP_8 (keypad number 8)
keycode 105 = KP_9 KP_9 (keypad number 9)
keycode 106 = KP_Multiply KP_Multiply (keypad multiplication)
keycode 107 = KP_Add KP_Add (smaller keyboard plus)
keycode 108 = KP_Separator KP_Separator (keyboard enter)
keycode 109 = KP_Subtract KP_Subtract (keyboard minus)
keycode 110 = KP_Decimal KP_Decimal (keyboard decimal point)
keycode 111 = KP_Divide KP_Divide (keyboard divide)
keycode 112 = F1
keycode 113 = F2
keycode 114 = F3
keycode 115 = F4
keycode 116 = F5
keycode 117 = F6
keycode 118 = F7
keycode 119 = F8
keycode 120 = F9
keycode 121 = F10
keycode 122 = F11
keycode 123 = F12
keycode 124 = F13
keycode 125 = F14
keycode 126 = F15
keycode 127 = F16
keycode 128 = F17
keycode 129 = F18
keycode 130 = F19
keycode 131 = F20
keycode 132 = F21
keycode 133 = F22
keycode 134 = F23
keycode 135 = F24
keycode 136 = Num_Lock
keycode 137 = Scroll_Lock (unknown)
keycode 187 = acute grave (unknown)
keycode 188 = comma semicolon (unknown) (comma semicolon)
keycode 189 = minus underscore (minus underscore)
keycode 190 = period colon (unknown colon)
keycode 192 = numbersign apostrophe (unknown single quote)
keycode 210 = plusminus hyphen macron (unknown & ^)
keycode 211 =
keycode 212 = copyright registered (unknown)
keycode 213 = guillemotleft guillemotright (unknown)
keycode 214 = masculine ordfeminine (unknown)
keycode 215 = ae AE (unknown)
keycode 216 = cent yen (unknown)
keycode 217 = questiondown exclamdown (unknown)
keycode 218 = onequarter onehalf threequarters (unknown)
keycode 220 = less greater bar
keycode 221 = plus asterisk asciitilde (plus asterisk unknown)
keycode 227 = multiply division
keycode 228 = acircumflex Acircumflex (unknown)
keycode 229 = ecircumflex Ecircumflex (unknown)
keycode 230 = icircumflex Icircumflex (unknown)
keycode 231 = ocircumflex Ocircumflex (unknown)
keycode 232 = ucircumflex Ucircumflex (unknown)
keycode 233 = ntilde Ntilde (unknown)
keycode 234 = yacute Yacute (unknown)
keycode 235 = oslash Ooblique (unknown)
keycode 236 = aring Aring (unknown)
keycode 237 = ccedilla Ccedilla (unknown)
keycode 238 = thorn THORN (unknown)
keycode 239 = eth ETH (unknown)
keycode 240 = diaeresis cedilla currency (unknown)
keycode 241 = agrave Agrave atilde Atilde (unknown)
keycode 242 = egrave Egrave (unknown)
keycode 243 = igrave Igrave (unknown)
keycode 244 = ograve Ograve otilde Otilde (unknown)
keycode 245 = ugrave Ugrave (unknown)
keycode 246 = adiaeresis Adiaeresis (unknown ) )
keycode 247 = ediaeresis Ediaeresis (unknown)
keycode 248 = idiaeresis Idiaeresis (unknown)
keycode 249 = odiaeresis Odiaeresis (unknown)
keycode 250 = udiaeresis Udiaeresis (unknown)
keycode 251 = ssharp question backslash (unknown)
keycode 252 = asciicircum degree（未知）
keycode 253 = 3 sterling（未知）
keycode 254 = Mode_switch（未知）
If you want to use a combination of keys, you can use event.ctrlKey, event.shiftKey, and event.altKey values to be true or false to determine whether the ctrl key, shift key, and alt key are pressed.
例：event.ctrlKey=true && event.keycode=65