大概: <script language=\"javascript\"> function add() { var area = document.getElementById(\"area\"); area.innerHTML += \"<br>\" + \"<input type=\\\"text\\\" id=\\\"id.."/>\"; } function show() { var area = document.getElementById(\"area\"); alert(area.innerHTML); } </script>
<script language=\"javascript\">
function add()
{
var area = document.getElementById(\"area\");
area.innerHTML += \"<br>\" + \"<input type=\\\"text\\\" id=\\\"id.."/>\";
}
function show()
{
var area = document.getElementById(\"area\");
alert(area.innerHTML);
}
</script>