<html>
<script type="text/javascript">
function easet(){
val = document.getElementById('input_val').value
btn = document.getElementById('text')
btn.innerHTML = "<a href='" + val + "'>测试</a >";
}
</script>
<body>
<h3 id="text"></h3>
<input type="text" name="val" id='input_val'>
<input type="button" id='btn' value="提交" onclick="easet()">
</body>
</html>
