代码:
<style type="text/css" media="screen">
.btn{
height: 2em;
width: 50px;
border:1px solid #fff;
border-radius: 5px;
background: #3366ff;
color: #fff;
}
</style>
</head>
<body>
<input type="button" value="点击" onclick="checkRight()" class="btn" />
已点次数:
<span id="clicknumber"></span>
</body>
<script defer="defer">
var x=0;
function checkRight(){
x=x+1;
document.getElementById('clicknumber').innerHTML = x;
}
</script>
</html>
图片: