先举一个例子：
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta content="width=device-width,height=device-height,initial-scale=1.0">
<title>Title</title>
<style>
*{padding:0;margin:0;}html,body{width: 100%;height: 100%;}
.mask {
position: absolute;
width: 100%;
height: 100%;
background: rgba(26,26,26,0.2);
}
a{
display: block;
width: 100%;
height: 100%;
font-size: 2rem;
}
</style>
</head>
<body>
<div class="mask"></div>
<a href="/go.html?url=https://www.baidu.com">去百度</a>
</body>
<script src="jquery.js"></script>
<script>
$(document).on('touchstart', '.mask', function() {
$(this).hide();
})
</script>
</html><!DOCTYPE html>
<html lang="en">
<
