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编码猿
2024-09-27 02:06:13 +08:00
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<!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>红包雨</title>
<style>
*{
margin: 0;
padding: 0;
}
img{
width: 130px;
height: 103px;
position: fixed;
cursor: pointer;
}
body{
height: 100vh;
}
</style>
</head>
<body>
</body>
<script>
// 生成随机出现的红包
// 计算红包随机出现的最大x轴范围
//{client}
// 创建红包img,为红包设置定位(left 随机最大范围出现 0 ~ offsetLeft)
// 让红包动起来
// 点击红包可以拆开(弹窗,告诉你中了什么奖项)
// 注意:弹窗打开时候,所有红包需要先暂停运动(停止创建红包),关闭弹窗的时候,你点击的红包消失,其他红包继续运动
//获取body的宽度,doucmen.body(虚拟对象)
// var clientWidth = document.body.clientWidth,
// clientHeight = document.body.clientHeight
var { clientWidth,clientHeight } = document.body
var offsetLeft = clientWidth - 130;
// console.log(clientWidth)
function createdHB() {
// console.log("创建红包")
var rendomLeft = Math.random() * offsetLeft
var img = document.createElement("img");
//创建ing图像
img.src = "./hb1.png";
img.style = `left:${rendomLeft}px ;
top: -130px`;
// console.log(img);
$("body").appendChild(img);
sport(img);
}
createdHB();
function sport(img){
//定义新曾一个img的id 用于清空每个图片的定时器
img.intervalId = setInterval(() => {
var oldTop = Number(img.style.top.replace("px",""));
//console.log("img.style.top:",);
var newTop = oldTop + 1;
img.style.top = `${newTop}px`
if( newTop > clientHeight){
$("body").removeChild(img);
clearInterval(img.intervalId);
}
},4)
}
setInterval(() =>{
createdHB()
},500)
function $(className) {
return document.querySelector(className)
}
function _(className) {
return document.querySelectorAll(className)
}
</script>
</html>