本文实例讲述了JavaScript基于面向对象实现的无缝滚动轮播。分享给大家供大家参考，具体如下：

无缝轮播 面向对象

一、HTML及CSS部分同前文《原生JavaScript实现的无缝滚动功能》。

JavaScript面向对象部分如下：

function Seamless(obj) {
  this.obj = document.getElementById(obj);
  this.oXSlide = GLOBAL.Dom.getElementsByClassName('J_XSlide',this.obj)[0];
  this.li = this.oXSlide.getElementsByTagName('li');
  this.liTabs = GLOBAL.Dom.getElementsByClassName('tabs',this.obj)[0].getElementsByTagName('li');
  this.iNow = 0;
  this.timer = null;
  this.playTime = 2000;
  this.init();
}
Seamless.prototype = {
  // 初始化
  init: function() {
    var _this = this;
    this.timer = setInterval(function(){
      _this.autoPlay();
    },this.playTime);
    this.overOut();
    this.tab();
  },tab: function() {
    var _this = this;
    var btn = GLOBAL.Dom.getElementsByClassName('btn',this.obj);
    this.oXSlide.style.width = this.li.length * this.li[0].offsetWidth + 'px';
    for(var i = 0,len = this.liTabs.length; i < len; i++) {
      this.liTabs[i].index = i;
      GLOBAL.Event.addHandler(this.liTabs[i],'mouSEOver',function() {
        _this.showItem(this.index);
      });
    }
    GLOBAL.Event.addHandler(btn[0],'click',function() {
      _this.moveLeft();
    });
    GLOBAL.Event.addHandler(btn[1],function() {
      _this.moveRight();
    });
  },// 移入移出时，轮播暂停与开始
  overOut: function() {
    var _this = this;
    GLOBAL.Event.addHandler(this.obj,function() {
      clearInterval(_this.timer);
    });
    GLOBAL.Event.addHandler(this.obj,'mouSEOut',function() {
      _this.timer = setInterval(function() {
        _this.autoPlay();
      },_this.playTime);
    });
  },autoPlay: function() {
    this.moveRight();
  },// 选项卡
  showItem:function (n) {
    for(var i = 0,len = this.liTabs.length; i < len; i++) {
      this.liTabs[i].className = 'tab';
    }
    if(n == this.liTabs.length) {
      this.liTabs[0].className = 'tab cur';
    }
    else {
      this.liTabs[n].className = 'tab cur';
    }
    startMove(this.oXSlide,{'left': -n * this.li[0].offsetWidth});
  },moveLeft:function () {
    this.iNow--;
    if(this.iNow == -1) {
      this.oXSlide.style.left = -this.liTabs.length * this.li[0].offsetWidth + 'px';
      this.iNow = this.liTabs.length - 1;
    }
    this.showItem(this.iNow);
  },moveRight:function () {
    this.iNow++;
    if(this.iNow == this.li.length) {
      this.oXSlide.style.left = 0;
      this.iNow = 1;
    }
    this.showItem(this.iNow);
  }
};
new Seamless('Box');

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希望本文所述对大家JavaScript程序设计有所帮助。