python/Day21-30/code/new/web1901/js_practice_7.html

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2024-12-04 00:04:56 +08:00
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style>
#container {
width: 800px;
height: 400px;
margin: 10px auto;
border: 1px solid black;
overflow: hidden;
}
#buttons {
width: 800px;
margin: 10px auto;
text-align: center;
}
#add, #fla {
border: none;
outline: none;
width: 80px;
height: 30px;
background-color: red;
color: white;
font-size: 16px;
cursor: pointer;
}
.small {
width: 80px;
height: 80px;
float: left;
}
</style>
</head>
<body>
<div id="container"></div>
<div id="buttons">
<button id="add">添加</button>
<button id="fla">闪烁</button>
</div>
<script src="js/hello.js"></script>
<script src="js/jquery.min.js"></script>
<script>
$(() => {
$('#add').on('click', (evt) => {
$('#container').prepend(
$('<div class="small">')
.css('background-color', randomColor())
)
})
$('#fla').on('click', (evt) => {
setInterval(() => {
$('#container>div').each((index, div) => {
$(div).css('background-color', randomColor())
})
}, 200)
})
})
</script>
</body>
</html>