js event 2
发布时间：2016-01-28 15:00:13
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&qu ...
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>
原标题：js event 2
关键词：JS
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