<ul class="box">
<li><img src="images/1.jpg" alt=""></li>
<li><img src="images/2.jpg" alt=""></li>
<li><img src="images/3.jpg" alt=""></li>
<li><img src="images/4.jpg" alt=""></li>
</ul>
<style>
*{
margin: 0;
padding: 0;
}
li{
list-style: none;
}
body{
background: url(images/1.jpg) no-repeat;
background-size: 100%;
}
.box{
margin: 100px auto;
width: 410px;
}
.box li{
float: left;
margin: 0 1px;
cursor: pointer;
}
.box img{
width: 100px;
}
</style>
jscript部分代码:
<script>
var imgs = document.querySelector('.box').querySelectorAll('img');
for (var i = 0; i < imgs.length; i++){
imgs[i].onclick=function(){
document.body.style.backgroundImage='url(' +this.src+')';
}
// this.src 就是我们点击图片的路径 images/2.jpg
// console.log(this.src);
// 把这个路径 this.src 给body 就可以了
}
</script>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
*{
margin: 0;
padding: 0;
}
li{
list-style: none;
}
body{
background: url(images/1.jpg) no-repeat;
background-size: 100%;
}
.box{
margin: 100px auto;
width: 410px;
}
.box li{
float: left;
margin: 0 1px;
cursor: pointer;
}
.box img{
width: 100px;
}
</style>
</head>
<body>
<ul class="box">
<li><img src="images/1.jpg" alt=""></li>
<li><img src="images/2.jpg" alt=""></li>
<li><img src="images/3.jpg" alt=""></li>
<li><img src="images/4.jpg" alt=""></li>
</ul>
<script>
var imgs = document.querySelector('.box').querySelectorAll('img');
for (var i = 0; i < imgs.length; i++){
imgs[i].onclick=function(){
document.body.style.backgroundImage='url(' +this.src+')';
}
// this.src 就是我们点击图片的路径 images/2.jpg
// console.log(this.src);
// 把这个路径 this.src 给body 就可以了
}
</script>
</body>
</html>
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