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<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<SCRIPT LANGUAGE="JavaScript">
var num = 1;
window.onload = haha();
window.onload = haha;//这个代码在body前还是body后,效果不一样
function haha(){
alert('window onload');
alert("num="+num);
num++;
}
function hehe(){
alert('body onload');
alert("num="+num);
num++;
}
</SCRIPT>
</HEAD>
<BODY onload="hehe()" onclick="alert('click');">
<div id="testdiv">
aaa
</div>
</BODY>
<SCRIPT LANGUAGE="JavaScript">
//window.onload = haha;//这个代码在body前还是body后,效果不一样
</SCRIPT>
</HTML>
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
<SCRIPT LANGUAGE="JavaScript">
var num = 1;
window.onload = haha();
window.onload = haha;//这个代码在body前还是body后,效果不一样
function haha(){
alert('window onload');
alert("num="+num);
num++;
}
function hehe(){
alert('body onload');
alert("num="+num);
num++;
}
</SCRIPT>
</HEAD>
<BODY onload="hehe()" onclick="alert('click');">
<div id="testdiv">
aaa
</div>
</BODY>
<SCRIPT LANGUAGE="JavaScript">
//window.onload = haha;//这个代码在body前还是body后,效果不一样
</SCRIPT>
</HTML>
<SCRIPT LANGUAGE="JavaScript">
window.onload = haha()
function haha() {
alert('window onload');
alert(document.getElementById('testdiv'));
}
</SCRIPT
<TITLE> New Document </TITLE>
<SCRIPT LANGUAGE="JavaScript">
window.onload = function(){
alert("dddd");
alert('window onload');
alert(document.getElementById('testdiv'));//output object
}
</SCRIPT>
</HEAD>
<BODY >
<div id="testdiv">
aaa
</div>
</BODY>
</HTML>
<HEAD>
<TITLE> New Document </TITLE>
<SCRIPT LANGUAGE="JavaScript">
window.onload = function(){
alert("dddd");
alert('window onload');
alert(document.getElementById('testdiv'));//output object
}
</SCRIPT>
</HEAD>
<BODY onload="alert('body onload');alert(document.getElementById('testdiv').innerText)" onclick="alert('click');">
<div id="testdiv">
aaa
</div>
</BODY>
</HTML>
<html>
<head>
<script type="text/javascript">
alert('a');
window.onload=function(){ //
alert('b');
}
alert('c');
</script>
</head>
<body onload="alert('d');">
</body>
</html>
----显示:acd<html>
<head>
<script type="text/javascript">
alert('a');
window.onload=fn(); // 后续脚本不执行
function fn(){
alert('b');
}
alert('c');
</script>
</head>
<body onload="alert('d');">
</body>
</html>
----依次显示:abd<html>
<head>
</head>
<body onload="alert('a');">
<script type="text/javascript">
alert('b');
window.onload=function (){ //
alert('c');
}
alert('d');
</script>
</body>
</html>
----依次显示:bdc<html>
<head>
</head>
<body onload="alert('a');">
<script type="text/javascript">
alert('b');
window.onload=fn(); // 后续脚本未执行
alert('c');
function fn(){
alert('d');
}
</script>
</body>
</html>
----依次显示:bda