<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<title>window.onload用法</title>
<style type="text/css">
#bg{
width:100px;
height:100px;
border:2px solid red;
}
</style>
<script type="text/javascript">
document.getElementById("bg").style.backgroundColor="#F90";
</script>
</head>
<body>
<div id="bg"></div>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<title>位置高度div垂直居中</title>
<style type="text/css">
#bg{
width:100px;
height:100px;
border:2px solid red;
}
</style>
<script type="text/javascript">
window.onload=function(){
document.getElementById("bg").style.backgroundColor="#F90";
}
</script>
</head>
<body>
<div id="bg"></div>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<title>window.onload用法详解</title>
<script type="text/javascript">
window.onload=function myalert()
{
");
}
</script>
</head>
<body>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<title>window.onload用法</title>
<style type="text/css">
#bg{
width:100px;
height:100px;
border:2px solid red;
}
</style>
<script type="text/javascript">
window.onload=function(){
function a(){
document.getElementById("bg").style.backgroundColor="#F90";
}
function b(){
document.getElementById("bg").style.width="200px";
}
a();
b();
}
</script>
</head>
<body>
<div id="bg"></div>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<title>window.onload用法</title>
<style type="text/css">
#bg{
width:100px;
height:100px;
border:2px solid red;
}
</style>
<script type="text/javascript">
window.addEventListener("load",bg,false);
window.addEventListener("load",changeW,false);
function bg(){
document.getElementById("bg").style.backgroundColor="#F90";
}
function changeW(){
document.getElementById("bg").style.width="200px";
}
</script>
</head>
<body>
<div id="bg"></div>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<title>window.onload用法</title>
<style type="text/css">
#bg{
width:100px;
height:100px;
border:2px solid red;
}
</style>
<script type="text/javascript">
window.attachEvent("onload",bg);
window.attachEvent("onload",changeW);
function bg(){
document.getElementById("bg").style.backgroundColor="#F90";
}
function changeW(){
document.getElementById("bg").style.width="200px";
}
</script>
</head>
<body>
<div id="bg"></div>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<meta charset=" utf-8">
<title>window.onload用法</title>
<style type="text/css">
#bg{
width:100px;
height:100px;
border:2px solid red;
}
</style>
<script type="text/javascript">
if(window.addEventListener){
window.addEventListener("load",bg,false);
window.addEventListener("load",changeW,false);
}
else{
window.attachEvent("onload",bg);
window.attachEvent("onload",changeW);
}
function bg(){
document.getElementById("bg").style.backgroundColor="#F90";
}
function changeW(){
document.getElementById("bg").style.width="200px";
}
</script>
</head>
<body>
<div id="bg"></div>
</body>
</html>
if(object.addEventListener){
object.addEventListener();
}
else{
object.attachEvent();
}
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