代码雨html网页代码
时间: 2024-03-10 22:42:50 浏览: 93
代码雨是一种经典的网页特效,通过在网页上模拟下雨的效果,给用户带来一种独特的视觉体验。下面是一个简单的代码雨的HTML网页代码示例:
```html
<!DOCTYPE html>
<html>
<head>
<title>Code Rain</title>
<style>
body {
background-color: black;
overflow: hidden;
}
.code {
position: absolute;
color: green;
font-size: 20px;
pointer-events: none;
}
</style>
</head>
<body>
<script>
var columns = Math.floor(window.innerWidth / 20);
var codeContainer = [];
for (var i = 0; i < columns; i++) {
codeContainer[i] = 1;
}
function drawCode() {
var canvas = document.createElement('canvas');
canvas.width = window.innerWidth;
canvas.height = window.innerHeight;
var context = canvas.getContext('2d');
context.fillStyle = 'rgba(0, 0, 0, 0.05)';
context.fillRect(0, 0, canvas.width, canvas.height);
context.fillStyle = '#0F0';
context.font = '15px Arial';
for (var i = 0; i < codeContainer.length; i++) {
var text = String.fromCharCode(65 + Math.floor(Math.random() * 26));
context.fillText(text, i * 20, codeContainer[i] * 20);
if (codeContainer[i] * 20 > canvas.height || Math.random() > 0.95) {
codeContainer[i] = 0;
}
codeContainer[i]++;
}
document.body.appendChild(canvas);
}
setInterval(drawCode, 50);
</script>
</body>
</html>
```
这段代码使用了HTML、CSS和JavaScript来实现代码雨的效果。在网页中,通过创建一个canvas元素,并使用JavaScript在canvas上绘制字符,模拟下雨的效果。每隔一段时间,代码会不断地从顶部落下,并且会随机生成不同的字符。
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