<!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>小精灵转呀转~</title> <style> * { list-style: none; margin: 0; padding: 0; } .box2 { width: 260px; height: 190px; margin: 100px auto; /* background-color: skyblue; */ } .box2 li { float: left; width: 24px; height: 24px; background-color: pink; margin: 10px 0 30px 30px; background: url(qb.png) no-repeat; } </style> </head> <body> <div class="box2"> <ul> <li></li> <li></li> <li></li> <li></li> <li></li> <li></li> <li></li> <li></li> <li></li> <li></li> <li></li> <li></li> </ul> </div> <script> var change = document.querySelectorAll('li'); for (var i = 0; i < change.length; i++) { var index = i * 44; change[i].style.backgroundPosition = '0 -' + index + 'px'; } </script> </body> </html>用其他方法实现这个效果,至少三种
时间: 2024-02-16 13:03:14 浏览: 68
这段 HTML + CSS + JavaScript 代码实现的效果是将一张包含了多个小图片的图片作为背景,然后通过 JavaScript 代码实现将每个小图片的位置进行调整,从而实现一个转盘的效果。
下面是三种用其他方法实现这个效果的方式:
1. 用 CSS3 动画实现转盘效果
```html
<!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>小精灵转呀转~</title>
<style>
* {
list-style: none;
margin: 0;
padding: 0;
}
.box2 {
width: 260px;
height: 190px;
margin: 100px auto;
position: relative;
}
.box2 ul {
position: absolute;
top: 0;
left: 0;
animation: rotate 5s linear infinite;
}
.box2 li {
width: 24px;
height: 24px;
background-color: pink;
background: url(qb.png) no-repeat;
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
}
@keyframes rotate {
from {
transform: rotate(0deg);
}
to {
transform: rotate(360deg);
}
}
</style>
</head>
<body>
<div class="box2">
<ul>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
<li></li>
</ul>
</div>
</body>
</html>
```
2. 用 Canvas 实现转盘效果
```html
<!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>小精灵转呀转~</title>
<style>
* {
list-style: none;
margin: 0;
padding: 0;
}
.box2 {
width: 260px;
height: 190px;
margin: 100px auto;
position: relative;
}
.box2 canvas {
position: absolute;
top: 0;
left: 0;
}
</style>
</head>
<body>
<div class="box2">
<canvas id="canvas" width="260" height="190"></canvas>
</div>
<script>
var canvas = document.getElementById('canvas');
var ctx = canvas.getContext('2d');
var img = new Image();
img.src = 'qb.png';
img.onload = function() {
var count = 0;
setInterval(function() {
count += 44;
if (count >= 528) {
count = 0;
}
ctx.clearRect(0, 0, canvas.width, canvas.height);
ctx.drawImage(img, 0, count, 24, 24, 118, 82, 24, 24);
}, 100);
}
</script>
</body>
</html>
```
3. 用 SVG 实现转盘效果
```html
<!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>小精灵转呀转~</title>
<style>
* {
list-style: none;
margin: 0;
padding: 0;
}
.box2 {
width: 260px;
height: 190px;
margin: 100px auto;
position: relative;
}
.box2 svg {
position: absolute;
top: 0;
left: 0;
transform-origin: 50% 50%;
animation: rotate 5s linear infinite;
}
@keyframes rotate {
from {
transform: rotate(0deg);
}
to {
transform: rotate(360deg);
}
}
</style>
</head>
<body>
<div class="box2">
<svg viewBox="0 0 24 528" width="24" height="528">
<use xlink:href="#icon"></use>
</svg>
<svg style="display: none;">
<symbol id="icon">
<image href="qb.png" width="24" height="528"></image>
</symbol>
</svg>
</div>
</body>
</html>
```
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