1
<img id="compman" src="/examples/compman.gif" alt="Crazy computerman" width="107" height="98">2
<p>alt属性值为:3
<script>4
document.write(document.getElementById("compman").alt);5
</script>6
</p>
<img id="compman" src="/examples/compman.gif" alt="Crazy computerman" width="107" height="98"><p>alt属性值为: <script> document.write(document.getElementById("compman").alt); </script></p>