srain-c
12/19/2014 - 11:18 AM

window.onload 添加监听事件

window.onload 添加监听事件

addEventForOnload.htm
content_copyfile_download
<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <title>Document</title>
</head>

<body>

</body>
<script type="text/javascript">
    function a1() {
        alert(1)
    }

    function a2() {
        alert(2)
    }
    window.onload = function () {
        alert(3)
    }

    if (document.all) {
        window.attachEvent('onload', a1);
        window.attachEvent('onload', a2);
    } else {
        window.addEventListener('load', a1, false);
        window.addEventListener('load', a2, false);
    }
</script>

</html>