使用 javascript 更改 iframe 的 src
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change the src of an iframe using javascript
提问by user1129274
<table>
<tr>
<td>one</td>
<td>two</td>
</tr>
<tr>
<td>three</td>
<td>four</td>
</tr>
</table>
<div id="numbers">
<iframe name="letters" src="">
</iframe>
</div>
I'd like to have the ability to click on any cell in the table, grab the value inside, show the divand append the iframe srcbased on the cell's value. When the user clicks on the cell again the iframebecomes blank and the divis hidden.
我希望能够点击表格中的任何单元格，获取里面的值，显示div并附加iframe src基于单元格的值。当用户再次单击单元格时，该单元格iframe变为空白并div隐藏。
For example: click cell one, show the divwith the iframe src="/one.html". Click it again, hide the div with a blank iframe.
例如：点击单元格one，显示出div与iframe src="/one.html"。再次单击它，用空白隐藏 div iframe。
Thanks in advance!
提前致谢！
(Please, no jQuery answers.)
（拜托，没有 jQuery 答案。）
回答by rekire
Without adding an id to the iframeuse this:
无需添加 id 即可iframe使用：
document.getElementsByTagName("iframe")[0].src="http://example.com/";
Or based on the name:
或根据名称：
document.getElementsByName("letters")[0].src="http://example.com/";
If you would add a id:
如果您要添加一个 id：
<iframe name="letters" id="letterframe" src="" />
document.getElementById("letterframe").src="http://example.com/";
回答by qw3n
Added ids to some of the HTML elements.
向某些 HTML 元素添加了 id。
<table id="table">
<tr>
<td>one</td>
<td>two</td>
</tr>
<tr>
<td>three</td>
<td>four</td>
</tr>
</table>
<div id="numbers">
<iframe id="iframe" name="letters" src="">
</iframe>
</div>
And the javascript
和 javascript
document.getElementById('table').onclick=function(e){
e = e || window.event;
e=e.target || e.srcElement;
if(e.tagName.toLowerCase()=='td'){
var page = e.innerHTML,iframe=document.getElementById('iframe');
if(iframe.src.indexOf(page)>-1){
document.getElementById('numbers').style.display='none';
}
else{
document.getElementById('numbers').style.display='block';
iframe.src='/'+page+'.html';
}
}
}
回答by qw3n
It should be something like below.Call this function on onclickevent of tdand pass desired srcin parameter.
它应该类似于下面的内容。在onclick事件发生时调用此函数td并src在参数中传递所需的内容。
<script type=”text/javascript”>
function changeURL(srcvalue)
{
document.getElementById('letters').src=srcvalue;
}
</script>
