这个想了好久不回 我是个初学者~~~ 一定要是js或者jq的代码啊
------解决方案--------------------
<script type="text/javascript">
function change(){
var a=document.getElementById("test");
var t=a.getAttribute("num");
if(t=="1"){
a.style.backgroundColor="black";
a.style.color="white";
}else{
a.style.backgroundColor="white";
a.style.color="black";
}
a.setAttribute("num",-t);
}
</script>
</head>
<body>
<input type="button" num="1" id="test" style="background-color:#FFF; color:#000" value="test" onclick="change()">
</body>
这样试试
------解决方案--------------------
- HTML code
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> <title>无标题文档</title> <style type="text/css"> input.white { background-color:white; } input.black { background-color:black; color:white; } </style> <script type="text/javascript" src="http://code.jquery.com/jquery-1.7.2.min.js"></script> <script type="text/javascript"> $(document).ready( function() { $("#btn").addClass('white').toggle(function() { $(this).removeClass("white").addClass("black"); }, function() { $(this).removeClass("black").addClass("white"); }); }); </script> </head> <body> <input type="button" id="btn" value="我是按钮" /> </body> </html>