- <script language="javascript">
 
 - function sendText()
 
 - {
 
 - var e=document.getElementById("div1")
 
 - var inp=document.getElementById("inp")
 
 - e.innerText=e.innerText+"\n"+inp.value;
 
 - //e.scrollTop=e.scrollHeight;
 
 - }
 
 - function sc()
 
 - {
 
 - var e=document.getElementById("div1")
 
 - e.scrollTop=e.scrollHeight;
 
 - }
 
 - var s=setInterval("sc()",200)
 
 - </script>
 
 - <div id="div1" style="border:1px #ff9966 dashed;width:400;height:100;overflow-x:hidden;overflow-y:scroll">
 
 - </div>
 
 - <input type="text" id="inp" style="width:300">
 
 - <input type="button" onclick="sendText()" value="发送啦"> 
 
  复制代码 
 
 
 
 
 
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