js 键盘码

键盘各按键对应的数字

keycode 9 = Tab
keycode 12 = Clear
keycode 13 = Enter
keycode 16 = Shift
keycode 17 = Control
keycode 18 = Alt
keycode 19 = Pause
keycode 20 = CapsLock
keycode 27 = Escape
keycode 32 = 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
keycode 48 = 0
keycode 49 = 1
keycode 50 = 2
keycode 51 = 3
keycode 52 = 4
keycode 53 = 5
keycode 54 = 6
keycode 55 = 7
keycode 56 = 8
keycode 57 = 9
keycode 65 = A
keycode 66 = B
keycode 67 = C
keycode 68 = D
keycode 69 = E
keycode 70 = F
keycode 71 = G
keycode 72 = H
keycode 73 = I
keycode 74 = J
keycode 75 = K
keycode 76 = L
keycode 77 = M
keycode 78 = N
keycode 79 = O
keycode 80 = P
keycode 81 = Q
keycode 82 = R
keycode 83 = S
keycode 84 = T
keycode 85 = U
keycode 86 = V
keycode 87 = W
keycode 88 = X
keycode 89 = Y
keycode 90 = Z
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

键盘码使用

原生js使用

    document.onkeyup = function (event) {
        var e = event ? event : window.event;
        if (e.keyCode == 13) {//旧版火狐、Opera请使用e.which
            alert('您按了回车键。');
        }
    };

jQuery使用

    $(document).on('keyup',function(event){
        if (event.keyCode == 13) {
            alert('您按了回车键。');
        }
    });