<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<script type="text/javascript">
function test(){
alert("OKOKOK");
}
function test1(){
alert("false");
}
window.onload=test;
if (typeof window.onload == "function") {
var existingOnload = window.onload;
window.onload = function() {
existingOnload();
test();
} //end existing onload handler
} else{
window.onload = function(){
test1();
}
}
</script>
</head><body>
</body>
</html>
改成这样试试
你没指定window.onload 所以返回的是object 不是function
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>无标题文档</title>
<script type="text/javascript">
function test(){
alert("OKOKOK");
}
function test1(){
alert("false");
}
window.onload=test;
if (typeof window.onload == "function") {
var existingOnload = window.onload;
window.onload = function() {
existingOnload();
test();
} //end existing onload handler
} else{
window.onload = function(){
test1();
}
}
</script>
</head><body>
</body>
</html>
改成这样试试
你没指定window.onload 所以返回的是object 不是function
解决方案 »
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