var imgList = getElementsByClassName("imgList")[0];
goLeft(imgList,num*400); //左移一定距离
//设置image 的 info
var curInfo = getElementsByClassName("infoOn")[0];
removeClass(curInfo,"infoOn");
addClass(infoArr[num],"infoOn");
//设置image的控制下标 index
var _curIndex = getElementsByClassName("indexOn")[0];
removeClass(_curIndex,"indexOn");
addClass(indexArr[num],"indexOn");
}
6.然后再给左右箭头还有右下角那堆index绑定事件处理
//给左右箭头和右下角的图片index添加事件处理
function addEvent(){
for(var i=0;i<imgLen;i++){
//闭包防止作用域内活动对象item的影响
(function(_i){
//鼠标滑过则清除定时器，并作变换处理
indexArr[_i].onmouseover = function(){
clearTimeout(autoChange);
changeTo(_i);
curIndex = _i;
};
//鼠标滑出则重置定时器处理
indexArr[_i].onmouseout = function(){
autoChangeAgain();
};
})(i);
} //给左箭头prev添加上一个事件
var prev = document.getElementById("prev");
prev.onmouseover = function(){
//滑入清除定时器
clearInterval(autoChange);
};
prev.onclick = function(){
//根据curIndex进行上一个图片处理
curIndex = (curIndex > 0) ? (--curIndex) : (imgLen - 1);
changeTo(curIndex);
};
prev.onmouseout = function(){
//滑出则重置定时器
autoChangeAgain();
};
//给右箭头next添加下一个事件
var next = document.getElementById("next");
next.onmouseover = function(){
clearInterval(autoChange);
};
next.onclick = function(){
curIndex = (curIndex < imgLen - 1) ? (++curIndex) : 0;
changeTo(curIndex);
};
next.onmouseout = function(){
autoChangeAgain();
};
}
7.最后的最后，没啥了. 噢好像还要调用一下下那个 addEvent() ..
完整代码 代码量有些冗杂..
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>图片轮播 js原生(左右切换)</title>
<style type="text/css">
body,div,ul,li,a,img{margin: 0;padding: 0;}
ul,li{list-style: none;}
a{text-decoration: none;} #wrapper{position: relative;margin: 30px auto;width: 400px;height: 200px;}
#banner{position:relative;width: 400px;height: 200px;overflow: hidden;}
.imgList{position:relative;width:2000px;height:200px;z-index: 10;overflow: hidden;}
