最后附上键值和键码的对应关系对象，可以直接拷贝使用：
const keyCodes = { 0: 'That key has no keycode', 3: 'break', 8: 'backspace / delete', 9: 'tab', 12: 'clear', 13: 'enter', 16: 'shift', 17: 'ctrl', 18: 'alt', 19: 'pause/break', 20: 'caps lock', 21: 'hangul', 25: 'hanja', 27: 'escape', 28: 'conversion', 29: 'non-conversion', 32: 'spacebar', 33: 'page up', 34: 'page down', 35: 'end', 36: 'home', 37: 'left arrow', 38: 'up arrow', 39: 'right arrow', 40: 'down arrow', 41: 'select', 42: 'print', 43: 'execute', 44: 'Print Screen', 45: 'insert', 46: 'delete', 47: 'help', 48: '0', 49: '1', 50: '2', 51: '3', 52: '4', 53: '5', 54: '6', 55: '7', 56: '8', 57: '9', 58: ':', 59: 'semicolon (firefox), equals', 60: '<', 61: 'equals (firefox)', 63: 'ß', 64: '@ (firefox)', 65: 'a', 66: 'b', 67: 'c', 68: 'd', 69: 'e', 70: 'f', 71: 'g', 72: 'h', 73: 'i', 74: 'j', 75: 'k', 76: 'l', 77: 'm', 78: 'n', 79: 'o', 80: 'p', 81: 'q', 82: 'r', 83: 's', 84: 't', 85: 'u', 86: 'v', 87: 'w', 88: 'x', 89: 'y', 90: 'z', 91: 'Windows Key / Left ⌘ / Chromebook Search key', 92: 'right window key', 93: 'Windows Menu / Right ⌘', 95: 'sleep', 96: 'numpad 0', 97: 'numpad 1', 98: 'numpad 2', 99: 'numpad 3', 100: 'numpad 4', 101: 'numpad 5', 102: 'numpad 6', 103: 'numpad 7', 104: 'numpad 8', 105: 'numpad 9', 106: 'multiply', 107: 'add', 108: 'numpad period (firefox)', 109: 'subtract', 110: 'decimal point', 111: 'divide', 112: 'f1', 113: 'f2', 114: 'f3', 115: 'f4', 116: 'f5', 117: 'f6', 118: 'f7', 119: 'f8', 120: 'f9', 121: 'f10', 122: 'f11', 123: 'f12', 124: 'f13', 125: 'f14', 126: 'f15', 127: 'f16', 128: 'f17', 129: 'f18', 130: 'f19', 131: 'f20', 132: 'f21', 133: 'f22', 134: 'f23', 135: 'f24', 144: 'num lock', 145: 'scroll lock', 160: '^', 161: '!', 162: '؛ (arabic semicolon)', 163: '#', 164: '$', 165: 'ù', 166: 'page backward', 167: 'page forward', 168: 'refresh', 169: 'closing paren (AZERTY)', 170: '*', 171: '~ + * key', 172: 'home key', 173: 'minus (firefox), mute/unmute', 174: 'decrease volume level', 175: 'increase volume level', 176: 'next', 177: 'previous', 178: 'stop', 179: 'play/pause', 180: 'e-mail', 181: 'mute/unmute (firefox)', 182: 'decrease volume level (firefox)', 183: 'increase volume level (firefox)', 186: 'semi-colon / ñ', 187: 'equal sign', 188: 'comma', 189: 'dash', 190: 'period', 191: 'forward slash / ç', 192: 'grave accent / ñ / æ / ö', 193: '?, / or °', 194: 'numpad period (chrome)', 219: 'open bracket', 220: 'back slash', 221: 'close bracket / å', 222: 'single quote / ø / ä', 223: '`', 224: 'left or right ⌘ key (firefox)', 225: 'altgr', 226: '< /git >, left back slash', 230: 'GNOME Compose Key', 231: 'ç', 233: 'XF86Forward', 234: 'XF86Back', 235: 'non-conversion', 240: 'alphanumeric', 242: 'hiragana/katakana', 243: 'half-width/full-width', 244: 'kanji', 251: "unlock trackpad (Chrome/Edge)", 255: 'toggle touchpad', }; // 压缩之后的 const keyCodesMin={0:"That key has no keycode",3:"break",8:"backspace / delete",9:"tab",12:"clear",13:"enter",16:"shift",17:"ctrl",18:"alt",19:"pause/break",20:"caps lock",21:"hangul",25:"hanja",27:"escape",28:"conversion",29:"non-conversion",32:"spacebar",33:"page up",34:"page down",35:"end",36:"home",37:"left arrow",38:"up arrow",39:"right arrow",40:"down arrow",41:"select",42:"print",43:"execute",44:"Print Screen",45:"insert",46:"delete",47:"help",48:"0",49:"1",50:"2",51:"3",52:"4",53:"5",54:"6",55:"7",56:"8",57:"9",58:":",59:"semicolon (firefox), equals",60:"<",61:"equals (firefox)",63:"ß",64:"@ (firefox)",65:"a",66:"b",67:"c",68:"d",69:"e",70:"f",71:"g",72:"h",73:"i",74:"j",75:"k",76:"l",77:"m",78:"n",79:"o",80:"p",81:"q",82:"r",83:"s",84:"t",85:"u",86:"v",87:"w",88:"x",89:"y",90:"z",91:"Windows Key / Left ⌘ / Chromebook Search key",92:"right window key",93:"Windows Menu / Right ⌘",95:"sleep",96:"numpad 0",97:"numpad 1",98:"numpad 2",99:"numpad 3",100:"numpad 4",101:"numpad 5",102:"numpad 6",103:"numpad 7",104:"numpad 8",105:"numpad 9",106:"multiply",107:"add",108:"numpad period (firefox)",109:"subtract",110:"decimal point",111:"divide",112:"f1",113:"f2",114:"f3",115:"f4",116:"f5",117:"f6",118:"f7",119:"f8",120:"f9",121:"f10",122:"f11",123:"f12",124:"f13",125:"f14",126:"f15",127:"f16",128:"f17",129:"f18",130:"f19",131:"f20",132:"f21",133:"f22",134:"f23",135:"f24",144:"num lock",145:"scroll lock",160:"^",161:"!",162:"؛ (arabic semicolon)",163:"#",164:"$",165:"ù",166:"page backward",167:"page forward",168:"refresh",169:"closing paren (AZERTY)",170:"*",171:"~ + * key",172:"home key",173:"minus (firefox), mute/unmute",174:"decrease volume level",175:"increase volume level",176:"next",177:"previous",178:"stop",179:"play/pause",180:"e-mail",181:"mute/unmute (firefox)",182:"decrease volume level (firefox)",183:"increase volume level (firefox)",186:"semi-colon / ñ",187:"equal sign",188:"comma",189:"dash",190:"period",191:"forward slash / ç",192:"grave accent / ñ / æ / ö",193:"?, / or °",194:"numpad period (chrome)",219:"open bracket",220:"back slash",221:"close bracket / å",222:"single quote / ø / ä",223:"`",224:"left or right ⌘ key (firefox)",225:"altgr",226:"< /git >, left back slash",230:"GNOME Compose Key",231:"ç",233:"XF86Forward",234:"XF86Back",235:"non-conversion",240:"alphanumeric",242:"hiragana/katakana",243:"half-width/full-width",244:"kanji",251:"unlock trackpad (Chrome/Edge)",255:"toggle touchpad",};原文更新到：