HTML部分 复制代码代码如下: <!DOCTYPE html> <head> <meta charset="utf-8" /> <title>WeChat Manager</title> <link href="css/index.css" rel="stylesheet" type="text/css"> <script src="http://code.jquery.com/jquery-1.10.2.min.js"> </script> <script> $(document).ready(function(){ $(document).keyup(function(event){ if(event.keyCode ==13){ $.ajax({ type: "POST", url: "ok.php", data: "code="+$("#in").val(), success: function(msg){ $("ul").append("<li>"+$("#in").val()+"</li>"); //将输入的输出到界面 $("ul").append("<li>"+msg+"</li>"); //获取返回值并输出 $("#in").val(""); //清空输入框 $("#text").scrollTop($("#text").scrollTop()+32);//滚动条拉到最下面,显示出输入框 } }); } }); $("#in")[0].focus(); }); </script> </head> <body> <div class="window"> <div class="title"> <img src="css/1.jpg"> <span>Wechat Dos</span> </div> <div id="text"> <ul> <li>Welcome...</li> <li>login:</li> </ul> <input type="text" name="" id=in> </div> </div> </body> </html> CSS部分 复制代码代码如下: @charset "utf-8"; body { background-color:#396DA5; margin:0px; padding:0px; color:#fff; font:"微软雅黑"; font-size:14px;} .window { border:6px #ccc outset; width:680px; height:442px; background-color:#000; position:absolute; top:40px; left:68px; overflow:hidden} .title { background-color:#08246B; padding:2px;} #text { background-color:#000; border-top:#ccc outset 2px; height:420px; overflow-y:scroll;} ul { margin:0px; padding:0px; list-style:none;} input { background-color:#000; border:0; color:#fff; outline:none; /*font-size:12px;*/ width:100%} 效果图: