<!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" οnclick="PostCon();"> <input type="button" value="清除" οnclick="Clear();"/></div> <div id="dCon"></div></body></html>