留言板

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<script src="js/jquery-3.2.1.min.js"></script>
<script type="text/javascript">
   //页面打开之后
   $(function(){
       if(localStorage.getItem("k_con")!=null){
           "k_con",$("#dCon").html(localStorage.getItem("k_con"));
       }
   });

   function PostCon(){
       var sCon=$("#trCon").val();

       $("#dCon").append("<div>"+sCon+"</div>");
       localStorage.setItem("k_con",$("#dCon").html());
   }

   function Clear(){
       $("dCon").html("");
       localStorage.clear();
   }

</script>
</head>
<body>
   <div><textarea id="trCon" rows="10" cols="30"></textarea></div>
   <div><input type="button" value="发表" onclick="PostCon();">
   <input type="button" value="清除" onclick="Clear();"/></div>
   <div id="dCon"></div>
</body>
</html>

留言板

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