<html>
<head></head>
<body>
<div id="ctl00_ContentPlaceHolder1_ctl00_ctl01_Showcase">
<div style="width:100%;text-align:center;"><img src="http://www.xyz.com/aaa.gif" id="ctl00_ContentPlaceHolder1_ctl00_ctl01_loderImg" alt="Loading" /></div> </div>
<script>
q= document.getElementById('ctl00_ContentPlaceHolder1_ctl00_ctl01_Showcase').childNodes[1].getAttribute('src').innerHTML;
alert(q);
</script>
</body>
</html>
我如何访问img标签的'src'属性？我上面的代码它给出了空值,所以什么是错的？
Thi*_*iff 13
您可以src直接在图像上使用.此外,你不需要.innerHTML.
演示:http://jsfiddle.net/ThinkingStiff/aU2H2/
document.getElementById( 'ctl00_ContentPlaceHolder1_ctl00_ctl01_loderImg' ).src;
HTML:
<html>
<head></head>
<body>
<div id="ctl00_ContentPlaceHolder1_ctl00_ctl01_Showcase">
<div style="width:100%;text-align:center;"><img src="http://placekitten.com/100/100" id="ctl00_ContentPlaceHolder1_ctl00_ctl01_loderImg" alt="Loading" /></div>
</div>
<script>
q = document.getElementById( 'ctl00_ContentPlaceHolder1_ctl00_ctl01_loderImg' ).src;
alert(q);
</script>
</body>
</html>
alert(document.getElementById('your_image_id').getAttribute('src'));