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Automatically execute the js code of a method after the page is loaded_javascript skills

WBOY
WBOYOriginal
2016-05-16 16:36:591535browse

1. Use onload:
in body 

<body onload="myfunction()">

2. Use window.onload:
in the script 

<script type="text/javascript">
function myfun()
{
alert("this window.onload");
}
/*用window.onload调用myfun()*/
window.onload=myfun;//不要括号
</script>

The following example changes the background color of id_1 after the page has finished loading. 

<script language="javascript" >
function myfun() {
document.getElementById("id_1").style.background= "#000"; // 改变背景颜色
}
// 用js实现在加载完成一个页面后自动执行一个方法
/*用window.onload调用myfun()*/
window.onload=myfun;//不要括号
</script>
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