TestIframe.html<html>
<head>
<script type="text/javascript">
alert(document.getElementById("MyIFrame").contentWindow.document.body.innerHTML);
function f(){
var doc; if (document.all){//IE
doc = document.frames["MyIFrame"].document;
}else{//Firefox
doc = document.getElementById("MyIFrame").contentDocument;
}
doc.getElementById("s").innerHTML += "123456789";
}
</script>
</head>
<body onload="f()"><iframe id = "MyIFrame" name = "MyIFrame" src = "MyIFrame.html" width = "500" height="500"></body>
</html>MyIFrame.html<h1 id = "s" style="color:red;" >内容<h1>
firefox 提示document.getElementById("MyIFrame") is null
<head>
<script type="text/javascript">
alert(document.getElementById("MyIFrame").contentWindow.document.body.innerHTML);
function f(){
var doc; if (document.all){//IE
doc = document.frames["MyIFrame"].document;
}else{//Firefox
doc = document.getElementById("MyIFrame").contentDocument;
}
doc.getElementById("s").innerHTML += "123456789";
}
</script>
</head>
<body onload="f()"><iframe id = "MyIFrame" name = "MyIFrame" src = "MyIFrame.html" width = "500" height="500"></body>
</html>MyIFrame.html<h1 id = "s" style="color:red;" >内容<h1>
firefox 提示document.getElementById("MyIFrame") is null
alert(document.getElementById("MyIFrame").contentWindow.document.body.innerHTML);
的时候,iframe还不存在
你把这段script放在
<iframe id = "MyIFrame" name = "MyIFrame" src = "MyIFrame.html" width = "500" height="500">
的下面就行了
window.left
window.right
window.parent
通过他们
//alert(document.getElementById("MyIFrame").contentWindow.document.body.innerHTML);
function f(){
alert(document.getElementById("MyIFrame").contentWindow.document.body.innerHTML);
var doc; if (document.all){//IE
doc = document.frames["MyIFrame"].document;
}else{//Firefox
doc = document.getElementById("MyIFrame").contentDocument;
}
doc.getElementById("s").innerHTML += "123456789";
}
</script>
<script type="text/javascript">
alert("123");
alert(document.getElementById("MyIFrame").contentWindow.document.body.innerHTML);
doc.getElementById("s").innerHTML += "123456789";</script>这样的效果是 报错也不执行 啊 搞了几天了 有点晕了 我想动态操作这里面的内容
<iframe id = "MyIFrame" name = "MyIFrame" src = "MyIFrame.html" width = "500" height="500">
<script type="text/javascript">
alert("123");
alert(document.getElementById("MyIFrame").contentWindow.document.body.innerHTML);
doc.getElementById("s").innerHTML += "123456789";</script>
刚说错了
这样的效果是 不报错也不执行 啊 搞了几天了 有点晕了 我想动态操作这里面的内容
试试这样:
document.frames['MyIFrame'].document.getElementById("s").innerHTML += "123456789";
用document.onkeydown 事件可以操作了 谢谢各位