老孟！来拿分！给你的！

child.html必须是window.open()打开的才行

解决方案 »

免费领取超大流量手机卡，每月29元包185G流量+100分钟通话, 中国电信官方发货

<html>
<head>
<title>PARENT AND CHILD WINDOWS</title>
<script language='JavaScript'>
var newwin=new newwin();
function newwin(alertmess){
    this.alertmess=alertmess;
}
function alertmess(){
    window.alert('success!');
}
</script></head>
<body BGCOLOR="#c0c0c0">
<a href="javascript:void(window.open('child.html'))">Create a  child window</a><br>
<input type='submit' onclick=alertmess()>
</body>
</html>===============<html>
<head>
<script language='javascript'>
function getParent(){
window.opener.alertmess();
}
</script>
<title>PARENT AND CHILD WINDOWS</title>
</head>
<body>
<input type='submit' value='get parent message' onclick=getParent()>
</body>
</html>
也可以这样：
<html>
<head>
<title>PARENT AND CHILD WINDOWS</title>
<script language='JavaScript'>
var newwin=new newwin();
function newwin(){
    this.alertmess=alertmess;
}
function alertmess(){
    window.alert('success!');
}</script></head>
<body BGCOLOR="#c0c0c0">
<a href="javascript:void(window.open('child.html'))">Create a  child window</a><br>
<input type='submit' onclick=alertmess()>
</body>
</html>
=======
<html>
<head>
<script language='javascript'>
function getParent(){
window.opener.newwin.alertmess();
}
</script>
<title>PARENT AND CHILD WINDOWS</title>
</head>
<body><input type='submit' value='get parent message' onclick=getParent()></body>
</html>
还是不行啊！
如果把子窗口里中window.opener.newwin.alertmess();里的newwin删掉就可以，
window.opener.alertmess();
这是为什么？
我自己定义的对象中的方法定义有问题吗？
麻烦给看看！
当前的源文件：
parent.html
////////////
<html>
<head>
<title>PARENT AND CHILD WINDOWS</title>
<script language='JavaScript'>
function alertmess(){
window.alert('success!');
}
function newwin(){
This.alertmess=alertmess();
}newwin=new newwin();
</script></head>
<body BGCOLOR="#c0c0c0"><a href="javascript:void(window.open('child.html'))">Create a  child window</a><br>
<input type='submit' onClick=alertmess()>
</body>
</html>child.html
//////////////<html>
<head>
<script language='javascript'>function getParent(){
if(window.opener.newwin==null){
alert("newwin is null!");
}
window.opener.alertmess();
}
</script>
<title>PARENT AND CHILD WINDOWS</title>
</head>
<body>
<form name='newwindow'>
<input type='submit' value='get parent message' onClick=getParent()>
</form>
</body>
</html>
你是说我的parent.html里的自定义对象有问题？
如果是应该怎么改啊？！
我很着急！
function newwin(){
    this.alertmess=alertmess;
}