事件 - 15key - 《html-css-js》

event.key 获取按下键盘对应的值
event.keyCode 13回车
R 82

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <input type="text" id="input">
    <script>
        /*
        event.key  获取按下键盘对应的值
        event.keyCode  13回车
        R  82
        */
        var input = document.getElementById("input");
        input.onkeydown = function(event){
            console.log(event.keCode)
            if(event.keyCode == 82){
                console.log("发大招")
            }
        }
        input.onkeypress = function(){
            console.log("press")
        }
        input.onkeyup = function(){
            console.log("放开")
        }     
    </script>
</body>
</html>