js-lib
/
Demo.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<button ontouchstart="tap(this,tap_func)" style="width: 150px;height: 150px;">测试tap</button>
</body>
<script type="text/javascript" src="tap.js"></script>
<script>
    function tap_func(obj) {
        console.log('tap')
    }
</script>
</html>