实现PC端和移动端的界面切换

<script>
       if((navigator.userAgent.match(/(phone|pad|pod|iPhone|iPod|ios|iPad|Android|Mobile|BlackBerry|IEMobile|MQQBrowser|JUC|Fennec|wOSBrowser|BrowserNG|WebOS|Symbian|Windows Phone)/i))) {
                window.location.href = "m/index.html"  //跳转到手机
            }else{
                window.location.href="";  //跳转到电脑
            }

</script>