<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
<style>
* {
margin: 0;
padding: 0;
}
body {
background: url(images/1.jpg) no-repeat center top;
}
li {
list-style: none;
}
.baidu {
overflow: hidden;
margin: 100px auto;
background-color: #fff;
width: 410px;
padding-top: 3px;
}
.baidu li {
float: left;
margin: 0 1px;
cursor: pointer;
}
.baidu img {
width: 100px;
}
</style>
</head>
<body>
<ul class="baidu">
<li><img src="images/1.jpg"></li>
<li><img src="images/2.jpg"></li>
<li><img src="images/3.jpg"></li>
<li><img src="images/4.jpg"></li>
</ul>
</body>
<script>
// 1、获取元素
var imgs = document.querySelector('.baidu').querySelectorAll('img');
// 2、循环注册事件
for (var i = 0; i < imgs.length; i++) {
imgs[i].onclick = function() {
// this.src就是哦们点击图片的路径
// console.log(this.src);
// 把这个路径 this.src给body就是可以了
document.body.style.backgroundImage = 'url(' + this.src + ')';
}
}
</script>
</html>
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