//面向对象function Left() { this.index = 0; this.lefthover = $(‘#left-content‘); this.listenhover()}//监听hover事件（鼠标放上去轮播图停止）Left.prototype.listenhover = function () { var self = this; this.lefthover.hover(function () { clearInterval(self.timer) },function () { self.loop(); });};//实现轮播图的滚动Left.prototype.loop = function () { var leftUL = $(‘#left-ul‘); var self = this; this.timer = setInterval(function () { if (self.index >= 3){ self.index = 0 }else { self.index += 1; } leftUL.animate({‘left‘:-795 * self.index},500) },2000)};//轮播图继续滚动Left.prototype.run = function () { this.loop()};//等待html全部加载完成后执行$(function () { var left = new Left(); left.run()});