<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>原生js实现图片拖动验证</title>
<link rel="stylesheet" type="text/css" href="css/imgyz.css"/>
</head>
<body>
<div class="minbtn"><button type="button"></button><span>图片不好看? 换一张吧!</span></div>
</body>
<script type="text/javascript" src="js/imgyz.js"></script>
<script type="text/javascript">
imgver();
var sxbtn=document.querySelector(".minbtn button");
sxbtn.onclick=function(){
location.reload();
}
</script>
</html>