1
<input type="button" id="button1" value="点我!">2
<p>按钮的文本:3
<script>4
document.write(document.getElementById("button1").value);5
</script>6
</p>
<input type="button" id="button1" value="点我!"><p>按钮的文本: <script> document.write(document.getElementById("button1").value); </script></p>