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>使用匿名函数及窗口加载事件title>
<style>
/* 设置div的宽度、高度和背景颜色 */
div {
width: 220px;
height: 220px;
background: rgb(81, 70, 184);
}
style>
<script>
window.onload = function() {
//使用document对象调用getElementById()方法获取文档中的元素
var oDiv = document.getElementById("div1");
oDiv.onmouseover = function() {
oDiv.style.width = "400px";
oDiv.style.background = "#FCF";
}
oDiv.onmouseout = function() {
oDiv.style.width = "220px";
oDiv.style.background = "rgb(81, 70, 184)";
}
}
script>
head>
<body>
<div id="div1">div>
body>
html>
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