function Slider(containerId){
this.containerId = $(containerId);
this.ullis =$get($get(containerId,“ul”)[0],“li”);
// console.log(this.ullis);
this.num = this.ullis.length;
this.ollis =this.createList();
// console.log(this.ollis);
this.indexA = 1;
this.timer;
this.init(this.indexA);
this.ltBtn = $(“ltBtn”);
this.rtBtn = $(“rtBtn”);
this.mouseenter();
this.autoplay(this.indexA);
// console.info(this.ollis);
}
Slider.prototype.createList =function(){//创建ol
var ol = $create(“ol”);
// console.log(this.num);
var lis = [];
for(var i = 0; i<this.num;i++){
var li = $create(“li”);
ol.appendChild(li);
lis.push(li);
}
this.containerId.appendChild(ol);
var spanleft = $create(“span”)
spanleft.innerHTML="<"
spanleft.id=“ltBtn”;
this.containerId.appendChild(spanleft);
var spanright =$create(“span”);
spanright.innerHTML = ">"
spanright.id = “rtBtn”;
this.containerId.appendChild(spanright);
var div = $create(“div”)
div.id= “msg”;
this.containerId.appendChild(div);
return lis;
}
Slider.prototype.init =function(index){
this.moveto(index);
}
Slider.prototype.mouseenter =function(){
var that = this;
for (var i = 0; i < this.num; i++) {
this.ollis[i].index = i;
this.ollis[i].onmouseenter = function(){
that.moveto(this.index);
}
}
this.ltBtn.onclick = function(){
// console.log(that.indexA);
if(that.indexA>0){
that.indexA–;
that.moveto(that.indexA);
}else{
that.indexA=that.num-1;
that.moveto(that.indexA);
}
}
this.rtBtn.onclick = function(){
if(that.indexA<that.num-1){
that.indexA++;
that.moveto(that.indexA);
}else{
that.indexA = 0;
that.moveto(that.indexA);
}
}
}
Slider.prototype.moveto =function(index){
// 初始化
for (var i = 0; i < this.num; i++) {
this.ullis[i].style.display=“none”;
this.ollis[i].style.backgroundColor=“red”;
}
this.ullis[index].style.display=“block”;
this.ollis[index].style.backgroundColor=“blue”;
// $(“msg”).innerHTML = this.ullis[index].firstChild.firstChild.alt;
}
Slider.prototype.autoplay= function(indexA){
var that =this;
that.timer = setInterval(function(){
indexA%=that.num;
that.moveto(indexA);
indexA++;
},3000);
that.containerId.onmouseenter =function(){
clearInterval(that.timer);
console.info(that.containerId);
}
that.containerId.onmouseleave = function(){
that.autoplay(indexA)
}
}
// 直接贴js部分了
