常用功能键：
keycode:8 = BackSpace BackSpace
keycode:9 = Tab Tab
keycode:12 = Clear
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 Escape
keycode:32 = space space
keycode:33 = Prior
keycode:34 = Next
keycode:35 = End
keycode:36 = Home
keycode:37 = Left
keycode:38 = Up
keycode:39 = Right
keycode:40 = Down
keycode:41 = Select
keycode:42 = Print
keycode:43 = Execute
keycode:45 = Insert
keycode:46 = Delete
keycode:47 = Help
10个数字键：
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
26个英文字母：
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
小键盘区的键值：
keycode 96 = KP_0(小键盘0)
keycode 97 = KP_1(小键盘1)
keycode 98 = KP_2(小键盘2)
keycode 99 = KP_3(小键盘3)
keycode 100 = KP_4(小键盘4)
keycode 101 = KP_5(小键盘5)
keycode 102 = KP_6(小键盘6)
keycode 103 = KP_7(小键盘7)
keycode 104 = KP_8(小键盘8)
keycode 105 = KP_9(小键盘9)
keycode 106 = KP_Multiply(小键盘*)
keycode 107 = KP_Add(小键盘+)
keycode 108 = KP_Separator(小键盘回车键)
keycode 109 = KP_Subtract(小键盘-)
keycode 110 = KP_Decimal(小键盘.)
keycode 111 = KP_Divide(小键盘/)
帮助键值：
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
组合键:
event.ctrlKey: 按下ctrl键
event.shiftKey: 按下shift键
event.altKey: 按下alt键
键值对应表:
A 0X65 U 0X85
B 0X66 V 0X86
C 0X67 W 0X87
D 0X68 X 0X88
E 0X69 Y 0X89
F 0X70 Z 0X90
G 0X71 0 0X48
H 0X72 1 0X49
I 0X73 2 0X50
J 0X74 3 0X51
K 0X75 4 0X52
L 0X76 5 0X53
M 0X77 6 0X54
N 0X78 7 0X55
O 0X79 8 0X56
P 0X80 9 0X57
Q 0X81 ESC 0X1B
R 0X82 CTRL 0X11
S 0X83 SHIFT 0X10
T 0X84 ENTER 0XD
==================== 来自网络的补充信息 ======================
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
keycode 187 = acute grave
keycode 188 = comma semicolon
keycode 189 = minus underscore
keycode 190 = period colon
keycode 192 = numbersign apostrophe
keycode 210 = plusminus hyphen macron
keycode 212 = copyright registered
keycode 213 = guillemotleft guillemotright
keycode 214 = masculine ordfeminine
keycode 215 = ae AE
keycode 216 = cent yen
keycode 217 = questiondown exclamdown
keycode 218 = onequarter onehalf threequarters
keycode 220 = less greater bar
keycode 221 = plus asterisk asciitilde
keycode 227 = multiply division
keycode 228 = acircumflex Acircumflex
keycode 229 = ecircumflex Ecircumflex
keycode 230 = icircumflex Icircumflex
keycode 231 = ocircumflex Ocircumflex
keycode 232 = ucircumflex Ucircumflex
keycode 233 = ntilde Ntilde
keycode 234 = yacute Yacute
keycode 235 = oslash Ooblique
keycode 236 = aring Aring
keycode 237 = ccedilla Ccedilla
keycode 238 = thorn THORN
keycode 239 = eth ETH
keycode 240 = diaeresis cedilla currency
keycode 241 = agrave Agrave atilde Atilde
keycode 242 = egrave Egrave
keycode 243 = igrave Igrave
keycode 244 = ograve Ograve otilde Otilde
keycode 245 = ugrave Ugrave
keycode 246 = adiaeresis Adiaeresis
keycode 247 = ediaeresis Ediaeresis
keycode 248 = idiaeresis Idiaeresis
keycode 249 = odiaeresis Odiaeresis
keycode 250 = udiaeresis Udiaeresis
keycode 251 = ssharp question backslash
keycode 252 = asciicircum degree
keycode 253 = 3 sterling
keycode 254 = Mode_switch
