点击返回到顶部

Posted 2020-10-01 教父123

$(window).scroll(function () {
var scrollH = window.screen.height;

if ($(window).scrollTop() > scrollH) {
$("#mob_backTop").fadeIn(60);
// console.log($(window).scrollTop())
// console.log(window.innerHeight)
// console.log(scrollH)
// console.log(window.document.body.clientHeight)
// console.log(window.screen.availHeight)
}
else {
$("#mob_backTop").fadeOut(60);
}
});