canvas实现简单代码雨

最新推荐文章于 2024-07-19 17:40:06 发布

JINMINGIS

最新推荐文章于 2024-07-19 17:40:06 发布

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分类专栏： JS

本文链接：https://blog.youkuaiyun.com/Yuoliku/article/details/93523197

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>简易代码雨</title>
    <style>
        *{
            margin:0px;
            padding:0px;
        }
        #can{
            display: block;
        }
    </style>
</head>
<body>
<canvas id="can"></canvas>
<script>
    var canvas=document.getElementById('can')
    var ctx=canvas.getContext('2d');
    var cw=canvas.width=window.innerWidth;
    var ch=canvas.height=window.innerHeight;
    var y=0;
    var x=Math.random()*cw;
    var init=function(){
        this.x=Math.random()*cw;
        this.y=0;
        this.v=Math.random()*5+20;
        this.color="rgb(" + Math.round(Math.random() * 255) + "," + Math.round(Math.random() * 255) + ',' + Math.round(Math.random() * 10) + ')'
        this.a