js event 2_随笔_内存溢出

js event 2

js event 2 浏览器兼容

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">

<html>

    <head>

        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">

        <title>事件编程</title>

    // js event 键盘方向键

                  function $(id){

                         return document.getElementById(id);

                      }

                window.onload = function() {

                $('content').onkeydown = function(event) {

                    if(window.event) {    //ie

                        var code = window.event.keyCode;

                    } else {      //w3c

                        var code = event.keyCode;

                    }

                    switch(code) {

                        case 37:

                            alert('向左');

                        break;

                        case 38:

                            alert('向上');

                        break;

                        case 39:

                            alert('向右');

                        break;

                        case 40:

                            alert('向下');

                        break;

                    }

                }

            }

        </script>

    </head>

    <body>

        <input id='content' type='text' name='text'>

    </body>

</html>

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原文地址: https://outofmemory.cn/zaji/586660.html

js event 2

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