methods:{ /** 增加动画成果 */ aniCom(ele, posit, leng1, leng2) { $(window).scroll(function () { let winTop = $(window).scrollTop() $(ele).each(function () { if ($(this).offset().top < winTop + $(window).height()) { $(this).css({ opacity: 1, [posit]: leng1, transitionDuration: '1.2s' }) } else if ($(this).offset().top - $(window).height() >= winTop) { $(this).css({ opacity: 0, [posit]: leng2, transitionDuration: '1.2s' }) } }) }) }}mounted() { this.$nextTick(() => { this.aniCom($('.animate'), 'bottom', '104px', '0px') this.aniCom($('.vip'), 'top', '50%', '70%') this.aniCom($('.text'), 'bottom', '54px', '0') })}