全局监听键盘事件

  1. <script type="text/javascript" language=JavaScript charset="UTF-8">
  2. document.onkeydown=function(event){
  3. var e = event || window.event || arguments.callee.caller.arguments[0];
  4. if(e && e.keyCode==27){ // 按 Esc
  5. //要做的事情
  6. }
  7. if(e && e.keyCode==113){ // 按 F2
  8. //要做的事情
  9. }
  10. if(e && e.keyCode==13){ // enter 键
  11. //要做的事情
  12. }
  13. };
  14. </script>
  15. 只要你定义了这些键的动作，你在浏览器里按下这些键就会响应，兼容目前所有浏览器。
    1. js 里面的键盘事件经常用到，所以收集了键盘事件对应的键码来分享下：
    2. keyCode 8 = BackSpace BackSpace
    3. keyCode 9 = Tab Tab
    4. keyCode 12 = Clear
    5. keyCode 13 = Enter
    6. keyCode 16 = Shift_L
    7. keyCode 17 = Control_L
    8. keyCode 18 = Alt_L
    9. keyCode 19 = Pause
    10. keyCode 20 = Caps_Lock
    11. keyCode 27 = Escape Escape
    12. keyCode 32 = space
    13. keyCode 33 = Prior
    14. keyCode 34 = Next
    15. keyCode 35 = End
    16. keyCode 36 = Home
    17. keyCode 37 = Left
    18. keyCode 38 = Up
    19. keyCode 39 = Right
    20. keyCode 40 = Down
    21. keyCode 41 = Select
    22. keyCode 42 = Print
    23. keyCode 43 = Execute
    24. keyCode 45 = Insert
    25. keyCode 46 = Delete
    26. keyCode 47 = Help
    27. keyCode 48 = 0 equal braceright
    28. keyCode 49 = 1 exclam onesuperior
    29. keyCode 50 = 2 quotedbl twosuperior
    30. keyCode 51 = 3 section threesuperior
    31. keyCode 52 = 4 dollar
    32. keyCode 53 = 5 percent
    33. keyCode 54 = 6 ampersand
    34. keyCode 55 = 7 slash braceleft
    35. keyCode 56 = 8 parenleft bracketleft
    36. keyCode 57 = 9 parenright bracketright
    37. keyCode 65 = a A
    38. keyCode 66 = b B
    39. keyCode 67 = c C
    40. keyCode 68 = d D
    41. keyCode 69 = e E EuroSign
    42. keyCode 70 = f F
    43. keyCode 71 = g G
    44. keyCode 72 = h H
    45. keyCode 73 = i I
    46. keyCode 74 = j J
    47. keyCode 75 = k K
    48. keyCode 76 = l L
    49. keyCode 77 = m M mu
    50. keyCode 78 = n N
    51. keyCode 79 = o O
    52. keyCode 80 = p P
    53. keyCode 81 = q Q at
    54. keyCode 82 = r R
    55. keyCode 83 = s S
    56. keyCode 84 = t T
    57. keyCode 85 = u U
    58. keyCode 86 = v V
    59. keyCode 87 = w W
    60. keyCode 88 = x X
    61. keyCode 89 = y Y
    62. keyCode 90 = z Z
    63. keyCode 96 = KP_0 KP_0
    64. keyCode 97 = KP_1 KP_1
    65. keyCode 98 = KP_2 KP_2
    66. keyCode 99 = KP_3 KP_3
    67. keyCode 100 = KP_4 KP_4
    68. keyCode 101 = KP_5 KP_5
    69. keyCode 102 = KP_6 KP_6
    70. keyCode 103 = KP_7 KP_7
    71. keyCode 104 = KP_8 KP_8
    72. keyCode 105 = KP_9 KP_9
    73. keyCode 106 = KP_Multiply KP_Multiply
    74. keyCode 107 = KP_Add KP_Add
    75. keyCode 108 = KP_Separator KP_Separator
    76. keyCode 109 = KP_Subtract KP_Subtract
    77. keyCode 110 = KP_Decimal KP_Decimal
    78. keyCode 111 = KP_Divide KP_Divide
    79. keyCode 112 = F1
    80. keyCode 113 = F2
    81. keyCode 114 = F3
    82. keyCode 115 = F4
    83. keyCode 116 = F5
    84. keyCode 117 = F6
    85. keyCode 118 = F7
    86. keyCode 119 = F8
    87. keyCode 120 = F9
    88. keyCode 121 = F10
    89. keyCode 122 = F11
    90. keyCode 123 = F12
    91. keyCode 124 = F13
    92. keyCode 125 = F14
    93. keyCode 126 = F15
    94. keyCode 127 = F16
    95. keyCode 128 = F17
    96. keyCode 129 = F18
    97. keyCode 130 = F19
    98. keyCode 131 = F20
    99. keyCode 132 = F21
    100. keyCode 133 = F22
    101. keyCode 134 = F23
    102. keyCode 135 = F24
    103. keyCode 136 = Num_Lock
    104. keyCode 137 = Scroll_Lock
    105. keyCode 187 = acute grave
    106. keyCode 188 = comma semicolon
    107. keyCode 189 = minus underscore
    108. keyCode 190 = period colon
    109. keyCode 192 = numbersign apostrophe
    110. keyCode 210 = plusminus hyphen macron
    111. keyCode 211 =
    112. keyCode 212 = copyright registered
    113. keyCode 213 = guillemotleft guillemotright
    114. keyCode 214 = masculine ordfeminine
    115. keyCode 215 = ae AE
    116. keyCode 216 = cent yen
    117. keyCode 217 = questiondown exclamdown
    118. keyCode 218 = onequarter onehalf threequarters
    119. keyCode 220 = less greater bar
    120. keyCode 221 = plus asterisk asciitilde
    121. keyCode 227 = multiply division
    122. keyCode 228 = acircumflex Acircumflex
    123. keyCode 229 = ecircumflex Ecircumflex
    124. keyCode 230 = icircumflex Icircumflex
    125. keyCode 231 = ocircumflex Ocircumflex
    126. keyCode 232 = ucircumflex Ucircumflex
    127. keyCode 233 = ntilde Ntilde
    128. keyCode 234 = yacute Yacute
    129. keyCode 235 = oslash Ooblique
    130. keyCode 236 = aring Aring
    131. keyCode 237 = ccedilla Ccedilla
    132. keyCode 238 = thorn THORN
    133. keyCode 239 = eth ETH
    134. keyCode 240 = diaeresis cedilla currency
    135. keyCode 241 = agrave Agrave atilde Atilde
    136. keyCode 242 = egrave Egrave
    137. keyCode 243 = igrave Igrave
    138. keyCode 244 = ograve Ograve otilde Otilde
    139. keyCode 245 = ugrave Ugrave
    140. keyCode 246 = adiaeresis Adiaeresis
    141. keyCode 247 = ediaeresis Ediaeresis
    142. keyCode 248 = idiaeresis Idiaeresis
    143. keyCode 249 = odiaeresis Odiaeresis
    144. keyCode 250 = udiaeresis Udiaeresis
    145. keyCode 251 = ssharp question backslash
    146. keyCode 252 = asciicircum degree
    147. keyCode 253 = 3 sterling
    148. keyCode 254 = Mode_switch
    149. 使用event对象的keyCode属性判断输入的键值
    150. eg：if(event.keyCode==13)alert(“enter!”);
    151. 键值对应表
    152. A　　0X65 　U 　　0X85
    153. B　　0X66　 V　　 0X86
    154. C　　0X67　 W　　 0X87
    155. D　　0X68　 X 　　0X88
    156. E　　0X69　 Y　　 0X89
    157. F　　0X70　 Z　　 0X90
    158. G　　0X71　 0　　 0X48
    159. H　　0X72　 1　　 0X49
    160. I　　0X73　 2　　 0X50
    161. J　　0X74　 3 　　0X51
    162. K　　0X75　 4 　　0X52
    163. L　　0X76　 5 　　0X53
    164. M　　0X77　 6　　 0X54
    165. N　　0X78 　7 　　0X55
    166. O　　0X79 　8 　　0X56
    167. P　　0X80 　9 　　0X57
    168. Q　　0X81　ESC　　0X1B
    169. R　　0X82　CTRL 　0X11
    170. S　　0X83　SHIFT　0X10
    171. T　　0X84　ENTER　0XD
    172. 如果要使用组合键，则可以判断是否同时按下了这几个键，比如ctrl键、shift键以及alt键的组合使用就可以判断是否多按下了ctrl键、shift键以及alt键

 

转载https://i.cnblogs.com/posts/edit

posted @ 2022-03-01 23:02  Chiffon1996  阅读(112)  评论(0)  编辑  收藏  举报