长见但是一直不清楚具体的啊

Question

--------------------------------ONE---------------------------------------
      <meta http-equiv="Pragma" content="no-cache">
      <meta http-equiv="Cache-Control" content="no-cache">
      <meta http-equiv="Expires" content="-1">
--------------------------------ONE--------------------------------------
      
--------------------------------Two---------------------------------------
<%
     response.setHeader("Pragma","no-cache");
    response.setHeader("Cache-Control","no-cache");
    response.setDateHeader("Expires",0);
    
%>
--------------------------------Two----------------------------------------1 上面两个意思一样吗?如果同时写header文件里面是否就是重复?2 <META http-equiv="Cache-Control" content="no-cache,no-store,must-revalidate,post-check=0,ptr-check=0">这句什么意思

Answer 1

是的 这个是设置页面的请求方式，是否本地缓存等信息的