本质上是监控ctrl+s 然后触发相应事件
<script language="JavaScript">
//Ctrl+s保存
document.onkeydown=function() {
if (event.ctrlKey == true && event.keyCode == 83) {//Ctrl+S
event.returnvalue = false;
alert('触发ctrl+s');
}
}
</script>
<input type="text" id="input" />
onkeydown支持的元素
<a>, <acronym>, <address>, <area>, <b>, <bdo>, <big>, <blockquote>, <body>, <button>, <caption>, <cite>, <code>, <dd>, <del>, <dfn>, <div>, <dt>, <em>, <fieldset>, <form>, <h1> to <h6>, <hr>, <i>, <input>, <kbd>, <label>, <legend>, <li>, <map>, <object>, <ol>, <p>, <pre>, <q>, <samp>, <select>, <small>, <span>, <strong>, <sub>, <sup>, <table>, <tbody>, <td>, <textarea>, <tfoot>, <th>, <thead>, <tr>, <tt>, <ul>, <var>
附上键盘码值
可在代码中的任何地方用下列常数代替实际值：
常数 值 描述
vbKeyLButton 0x1 鼠标左键
vbKeyRButton 0x2 鼠标右键
vbKeyCancel 0x3 CANCEL 键
vbKeyMButton 0x4 鼠标中键
vbKeyBack 0x8 BACKSPACE 键
vbKeyTab 0x9 TAB 键
vbKeyClear 0xC CLEAR 键
vbKeyReturn 0xD ENTER 键
vbKeyShift 0x10 SHIFT 键
vbKeyControl 0x11 CTRL 键
vbKeyMenu 0x12 MENU 键
vbKeyPause 0x13 PAUSE 键
vbKeyCapital 0x14 CAPS LOCK 键
vbKeyEscape 0x1B ESC 键
vbKeySpace 0x20 SPACEBAR 键
vbKeyPageUp 0x21 PAGE UP 键
vbKeyPageDown 0x22 PAGE DOWN 键
vbKeyEnd 0x23 END 键
vbKeyHome 0x24 HOME 键
vbKeyLeft 0x25 LEFT ARROW 键
vbKeyUp 0x26 UP ARROW 键
vbKeyRight 0x27 RIGHT ARROW 键
vbKeyDown 0x28 DOWN ARROW 键
vbKeySelect 0x29 SELECT 键
vbKeyPrint 0x2A PRINT SCREEN 键
vbKeyExecute 0x2B EXECUTE 键
vbKeySnapshot 0x2C SNAPSHOT 键
vbKeyInsert 0x2D INSERT 键
vbKeyDelete 0x2E DELETE 键
vbKeyHelp 0x2F HELP 键
vbKeyNumlock 0x90 NUM LOCK 键
A 至 Z 键与 A – Z 字母的 ASCII 码相同：
常数 值 描述
vbKeyA 65 A 键
vbKeyB 66 B 键
vbKeyC 67 C 键
vbKeyD 68 D 键
vbKeyE 69 E 键
vbKeyF 70 F 键
vbKeyG 71 G 键
vbKeyH 72 H 键
vbKeyI 73 I 键
vbKeyJ 74 J 键
vbKeyK 75 K 键
vbKeyL 76 L 键
vbKeyM 77 M 键
vbKeyN 78 N 键
vbKeyO 79 O 键
vbKeyP 80 P 键
vbKeyQ 81 Q 键
vbKeyR 82 R 键
vbKeyS 83 S 键
vbKeyT 84 T 键
vbKeyU 85 U 键
vbKeyV 86 V 键
vbKeyW 87 W 键
vbKeyX 88 X 键
vbKeyY 89 Y 键
vbKeyZ 90 Z 键
0 至 9 键与数字 0 – 9 的 ASCII 码相同：
常数 值 描述
vbKey0 48 0 键
vbKey1 49 1 键
vbKey2 50 2 键
vbKey3 51 3 键
vbKey4 52 4 键
vbKey5 53 5 键
vbKey6 54 6 键
vbKey7 55 7 键
vbKey8 56 8 键
vbKey9 57 9 键
下列常数代表数字键盘上的键：
常数 值 描述
vbKeyNumpad0 0x60 0 键
vbKeyNumpad1 0x61 1 键
vbKeyNumpad2 0x62 2 键
vbKeyNumpad3 0x63 3 键
vbKeyNumpad4 0x64 4 键
vbKeyNumpad5 0x65 5 键
vbKeyNumpad6 0x66 6 键
vbKeyNumpad7 0x67 7 键
vbKeyNumpad8 0x68 8 键
vbKeyNumpad9 0x69 9 键
vbKeyMultiply 0x6A MULTIPLICATION SIGN (*) 键
vbKeyAdd 0x6B PLUS SIGN (+) 键
vbKeySeparator 0x6C ENTER 键
vbKeySubtract 0x6D MINUS SIGN (-) 键
vbKeyDecimal 0x6E DECIMAL POINT (.) 键
vbKeyDivide 0x6F DIVISION SIGN (/) 键
下列常数代表功能键：
常数 值 描述
vbKeyF1 0x70 F1 键
vbKeyF2 0x71 F2 键
vbKeyF3 0x72 F3 键
vbKeyF4 0x73 F4 键
vbKeyF5 0x74 F5 键
vbKeyF6 0x75 F6 键
vbKeyF7 0x76 F7 键
vbKeyF8 0x77 F8 键
vbKeyF9 0x78 F9 键
vbKeyF10 0x79 F10 键
vbKeyF11 0x7A F11 键
vbKeyF12 0x7B F12 键
vbKeyF13 0x7C F13 键
vbKeyF14 0x7D F14 键
vbKeyF15 0x7E F15 键
vbKeyF16 0x7F F16 键