![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>明星相册</title>
<style type="text/css">
.box {
width: 500px;
height: 700px;
background-color: #efefef;
border: 1px solid lightgray;
margin: 20px auto;
text-align: center;
color: #636363;
box-shadow: 2px 2px 2px #999;
}
.box ul {
margin:0;
padding:0;
overflow: hidden;
}
.box ul li {
list-style-type: none;
float:left;
background-color: skyblue;
margin-left: 20px;
}
.box ul li a {
display: block;
width: 100px;
height: 40px;
line-height: 40px;
color: white;
text-decoration: none;
}
.box ul li:hover {
font-size:1.2em;
background-color: coral;
}
.box .pic {
width: 450px;
height:450px;
border: 1px solid lightgray;
margin: 50px auto 0;
}
.box .pic img {
width: 100%;
height: 100%;
}
</style>
</head>
<body>
<div class="box">
<h2>明星相册</h2>
<ul>
<li>
<a href="images/zly.jpg" title="《楚乔传》,《花千骨》,《陆贞传奇》..">赵丽颖</a>
</li>
<li>
<a href="images/gyy.jpg" title="《倚天屠龙记》,《咱们经婚吧》,《爱无悔》...">高圆圆</a>
</li>
<li>
<a href="images/sl.jpg" title="《那年花开月正圆》,《甑环传》,《玉观音》..." >孙俪</a>
</li>
<li><a href="images/fbb.jpg" title="《还珠格格》,《武媚娘传奇》,《我不是潘金莲》..." >范冰冰</a></li>
</ul>
<div class="pic">
<img src="images/zwt.png" alt="" id="img">
</div>
<p id='info'></p>
</div>
<script>
var img1 = document.getElementsByTagName( 'a' ); //获取a标签
var pic = document.getElementById( 'img' ); //获取id为img的
var p = document.getElementById( 'info' ); //获取id为info的
for (var i=0; i<img1.length; i++) { //遍历
img1[i].onclick= function () { //img添加属性
for (var i = 0; i < img1.length; i++) { //遍历
img1[i].classList.remove('active'); //更新属性
}
this.classList.add('active'); //增加
var picUrl = this.href; // 变量 获取a标签的href内容 this为当前
var picInfo = this.title; // 变量 获取a标签的title内容 this为当前
var picName = this.innerHTML; //// 变量 获取a标签的内容 innerhtml
//将对应的图像与信息占位符进行替换
img.src = picUrl;
p.innerHTML = '<span style="color:coral">'+picName+':'+picInfo+'</span>';
return false;
};
}
</script>
</body>
</html>点击 "运行实例" 按钮查看在线实例
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>相册</title>
<style type="text/css">
.box {
width: 500px;
height: 700px;
background-color: #efefef;
border: 1px solid lightgray;
margin: 20px auto;
text-align: center;
color: #636363;
box-shadow: 2px 2px 2px #999;
}
.box ul {
margin:0;
padding:0;
/*将ul转为BFC独立块,使之不受内部浮动元素的影响*/
overflow: hidden;
}
.box ul li {
list-style-type: none;
float:left;
background-color: skyblue;
margin-left: 20px;
}
.box ul li a {
/*将a转为块元素,并设置为li的宽高,这样可以使整个li可以被点击*/
display: block;
width: 100px;
height: 40px;
line-height: 40px;
color: white;
text-decoration: none;
}
.box ul li:hover {
font-size:1.2em;
background-color: coral;
}
.box .pic {
width: 450px;
height:450px;
border: 1px solid lightgray;
margin: 50px auto 0;
}
.box .pic img {
width: 100%;
height: 100%;
}
</style>
</head>
<body>
<!-- 知识点:
1.js代码可以写在哪里?2.js如何调用的? 3.js函数的使用语法-->
<div class="box">
<h2>明星相册</h2>
<ul>
<!--<li><a href="images/zly.jpg" onclick="document.getElementById('img').src = this.href;return false">赵丽颖</a></li>-->
<li>
<a href="images/zly.jpg" title="《楚乔传》,《花千骨》,《陆贞传奇》..">赵丽颖</a>
</li>
<li>
<a href="images/gyy.jpg" title="《倚天屠龙记》,《咱们经婚吧》,《爱无悔》...">高圆圆</a>
</li>
<li>
<a href="images/sl.jpg" title="《那年花开月正圆》,《甑环传》,《玉观音》..." >孙俪</a>
</li>
<li><a href="images/fbb.jpg" title="《还珠格格》,《武媚娘传奇》,《我不是潘金莲》..." >范冰冰</a></li>
</ul>
<div class="pic">
<img src="images/zwt.png" alt="" id="img">
</div>
<p id='info'></p>
</div>
<script>
var img1 = document.getElementsByTagName( 'a' );
var pic = document.getElementById( 'img' );
var p = document.getElementById( 'info' );
for (var i=0; i<img1.length; i++) {
img1[i].onclick= function () {
for (var i = 0; i < img1.length; i++) {
img1[i].classList.remove('active');
}
this.classList.add('active');
var picUrl = this.href;
var picInfo = this.title;
var picName = this.innerHTML;
img.src = picUrl;
p.innerHTML = '<span style="color:coral">'+picName+':'+picInfo+'</span>';
return false;
};
}
</script>
</body>
</html>点击 "运行实例" 按钮查看在线实例
