为啥我这个幻灯片显示不出来呢~~求助~~
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>JS+CSS实现带预览图的幻灯片效果</title>
<style>
*{padding:0;margin:0;}
body{
padding:50px 0;
font-size: 14px;
background-color: #fff;
font-family:'Avenir next';
color:#555;
-webkit-font-smoothing:antialiased;
/*字体抗锯齿*/
}
.slider,.slider .main,.slider .main .main-i{
width:100%;
height:400px;
position:relative;
}
/*幻灯片区域*/
.slider .main{
overflow:hidden;
}
/*每一个幻灯片*/
.slider .main .main-i img{
width:100%;
position:absolute;
left:0;
top:0;
z-index:1;
}
.slider .main .main-i .caption{
position:absolute;
right:50%;
top:30%;
z-index:9;
}
.slider .main .main-i .caption h2{
font-size: 40px;
line-height: 50px;
color:#b5b5b5;
text-align:right;
}
.slider .main .main-i .caption h3{
font-size: 70px;
line-height: 70px;
color:#000000;
font-family: 'Open Sans Condensed';
text-align:right;
}
/*控制按钮区域*/
.slider .ctrl{
width:100%;
height:13px;
line-height: 13px;
text-align:center;
position: absolute;
left:0;
bottom:-13px;
}
.slider .ctrl .ctrl-i{
display: inline-block;
width:150px;
height:13px;
background-color: #666;
box-shadow: 0 1px 1px rgba(0,0,0,.3);
position:relative;
margin-left:1px;
}
.slider .ctrl .ctrl-i img{
width:100%;
position: absolute;
left:0;
bottom:50px;
z-index:1;
opacity: 0;
-webkit-transition:all .2s;
}
/*hover 到控制按钮*/
.slider .ctrl .ctrl-i:hover{
background-color: #f0f0f0;
}
.slider .ctrl .ctrl-i:hover img{
bottom:13px;
-webkit-box-reflect:below 0px -webkit-gradient(
linear,
left top,
left bottom,
from(transparent),
color-stop(50%,transparent),
to(rgba(255,255,255,.3))
);
opacity: 1;
}
/*active 当前展现的状态*/
.slider .ctrl .ctrl-i_active:hover,
.slider .ctrl .ctrl-i_active{
background-color:#000;
}
.slider .ctrl .ctrl-i_active:hover img{
opacity: 0;
}
/*幻灯片切换的样式*/
.slider .main .main-i{
opacity: 0;
position:absolute;
right:50%;
top:0;
-webkit-transition:all .5s;
}
.slider .main .main-i h2{
margin-right:45px;
}
.slider .main .main-i h3{
margin-right:-45px;
}
.slider .main .main-i h2,
.slider .main .main-i h3{
-webkit-transition:all .8s 1s;
}
.slider .main .main-i_active{
right:0;
opacity: 1;
}
.slider .main .main-i_active h2,
.slider .main .main-i_active h3{
margin-right:0;
}
</style>
</head>
<body>
<div>
<!--幻灯片区域-->
<!--0.修改 VIEW->Template(关键字替换)-->
<div id="template_main">
<div id="main_{{index}}">
<div>
<h2>h2 caption</h2>
<h3>h3 caption</h3>
</div>
<img src="images/{{index}}.jpg"/>
</div>
<div>
<div>
<h2>{{h2}}</h2>
<h3>{{h3}}</h3>
</div>
<img src="images/{{index}}.jpg"/>
</div>
</div>
<!--控制按钮区域-->
<div id="template_ctrl">
<a href="javascript:switchSlider({{index}});" id="ctrl_{{index}}">
<img src="images/{{index}}.jpg">
</a>
</div>
</div>
<script>
//1.数据定义(实际项目中又后台提供)
var data=[
{img:1,h1:'Creative',h2:'DUET'},
{img:2,h1:'Friendly',h2:'DEVIL'},
{img:3,h1:'Tranquilent',h2:'COMPATRIOT'},
{img:4,h1:'Insecure',h2:'HUSSLER'},
{img:5,h1:'Loving',h2:'REBEL'},
{img:6,h1:'Passionate',h2:'SEEKER'},
{img:7,h1:'Crazy',h2:'FRIEND'}
];
//2.通用函数
var g=function(id){
if (id.substr(0,1)=='.'){
return document.getElementsByClassName(id.substr(1));
}
return document.getElementById(id);
}
//3.添加幻灯片的操作(所有幻灯片&对应的按钮)
function addSliders(){
//3.1.获取模版
var tpl_main=g('template_main').innerHTML
.replace(/^\s*/,'')
.replace(/\s*$/,'');
var tpl_ctrl=g('template_ctrl').innerHTML
.replace(/^\s*/,'')
.replace(/\s*$/,'');
//3.2定义输出 HTML 的变量
var out_main=[];
var out_ctrl=[];
//3.3遍历所有数据，构建最终输出的HTML
for (i in data){
var _html_main=tpl_main
.replace(/{{index}}/g,data[i].img)
.replace(/{{h2}}/g,data[i].h1)
.replace(/{{h3}}/g,data[i].h2);
var _html_ctrl=tpl_ctrl
.replace(/{{index}}/g,data[i].img);
out_main.push(_html_main);
out_ctrl.push(_html_ctrl);
}
//3.4把HTML回写到对应的DOM里面
g('template_main').innerHTML=out_main.join('');
g('template_ctrl').innerHTML=out_ctrl.join('');
}
//5.幻灯片切换
function switchSlider(n){
//5.1获得要展现的幻灯片&控制按钮 DOM
var main=g('main_'+n);
var ctrl=g('ctrl_'+n);
//5.2获得所有的幻灯片以及控制按钮
var clear_main=g('.main-i');
var clear_ctrl=g('.ctrl-i');
//5.3清除他们的active样式
for (var i=0;i<clear_ctrl.length;i++){
clear_main[i].className=clear_main[i].className.replace('main-i_active','');
clear_ctrl[i].className=clear_ctrl[i].className.replace('ctrl-i_active','');
}
//5.4为当前控制按钮和幻灯片附加样式
main.className+='main-i_active';
ctrl.className+='ctrl-i_active';
}
//4.定义何时处理幻灯片输出
window.onload=function(){
addSliders();
}
</script>
</body>
</html>
