js 里面的键盘码对应的值
内容过多，请移驾另一篇博文：
https://yangyongli.blog.csdn.net/article/details/118753001
监听单个按键
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <script type = "text/javascript" language = JavaScript charset = "UTF-8" > document.onkeydown=function(event) { var e = event || window.event || arguments.callee.caller.arguments[0]; if (e && e.keyCode == 27) { // 按 Esc //要做的事情 console.log('按下了Esc'); } if (e && e.keyCode == 113) { // 按 F2 //要做的事情 console.log('按下了F2'); } if (e && e.keyCode == 13) { // enter 键 //要做的事情 console.log('按下了enter'); } }; </script> </body> </html>
监听组合键
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Document</title> </head> <body> <script> //快捷键调用 // type:双组合键事件，可选alt、shift、 ctrl 如不是三个参数之一则为单键事件 // keycode:键盘对应的值 // callback:回调函数 // dom: 给某元素添加事件，默认为document function callspeedykey(type, keycode, callback, dom) { var dom = dom == undefined ? document : document.getElementById(dom); console.log(dom) dom.onkeydown = function (event) { var e = event || window.event || arguments.callee.caller.arguments[0]; if (type == 'shift') { if (e && e.keyCode == keycode && e.shiftKey) { callback('shift'); }; } else if (type == 'alt') { if (e && e.keyCode == keycode && e.altKey) { callback('alt'); }; } else if (type == 'ctrl') { if (e && e.keyCode == keycode && e.ctrlKey) { callback('ctrl'); }; } else { if (e && e.keyCode == keycode) { callback('enter'); }; }; }; }; function callback(type) { console.log(type); console.log('组合键'+type+'与enter'); }; callspeedykey('alt', '13', callback) </script> </body> </html>
