1 (左側)
KeyA (65)KeyB (66)KeyC (67)KeyD (68)KeyE (69)KeyF (70)KeyG (71)KeyH (72)KeyI (73)KeyJ (74)KeyK (75)KeyL (76)KeyM (77)KeyN (78)KeyO (79)KeyP (80)KeyQ (81)KeyR (82)KeyS (83)KeyT (84)KeyU (85)KeyV (86)KeyW (87)KeyX (88)KeyY (89)KeyZ (90)Digit0 (48)Digit1 (49)Digit2 (50)Digit3 (51)Digit4 (52)Digit5 (53)Digit6 (54)Digit7 (55)Digit8 (56)Digit9 (57)F1 (112)F2 (113)F3 (114)F4 (115)F5 (116)F6 (117)F7 (118)F8 (119)F9 (120)F10 (121)F11 (122)F12 (123)ArrowUp (38)ArrowDown (40)ArrowLeft (37)ArrowRight (39)ShiftLeft (16)ShiftRight (16)ControlLeft (17)ControlRight (17)AltLeft (18)AltRight (18)MetaLeft (91)MetaRight (92)Enter (13)Backspace (8)Delete (46)Tab (9)Space (32)Home (36)End (35)PageUp (33)PageDown (34)Escape (27)CapsLock (20)Insert (45)PrintScreen (44)ScrollLock (145)Pause (19)Numpad0 (96)Numpad1 (97)Numpad2 (98)Numpad3 (99)Numpad4 (100)Numpad5 (101)Numpad6 (102)Numpad7 (103)Numpad8 (104)Numpad9 (105)NumpadMultiply (106)NumpadAdd (107)NumpadSubtract (109)NumpadDecimal (110)NumpadDivide (111)NumpadEnter (13)NumLock (144)Semicolon (186)Equal (187)Comma (188)Minus (189)Period (190)Slash (191)Backquote (192)BracketLeft (219)Backslash (220)BracketRight (221)Quote (222)鍵盤按鍵檢測工具可以幫助您快速獲取任意按鍵的 JavaScript 事件屬性，包括 key、code、keyCode、location 以及修飾鍵狀態等。
event.key: 返回按下的鍵的字元值，考慮了鍵盤佈局和修飾鍵 (推薦使用)
event.code: 返回按鍵的物理程式碼，不受鍵盤佈局影響 (推薦使用)
event.keyCode: 返回數字鍵碼，已被廢棄，但仍在許多舊程式碼中使用
event.which: 類似 keyCode，已被廢棄
event.location: 標識按鍵在鍵盤上的位置 (適用於左右區分的按鍵)
修飾鍵: Alt、Ctrl、Shift、Meta (⌘ 或 Win 鍵) 的狀態