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  • Cookie的使用

    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8">
    <title>菜鸟教程(runoob.com)</title>
    </head>
    <head>
    <script>
    function setCookie(cname,cvalue,exdays){
     var d = new Date();
     d.setTime(d.getTime()+(exdays*24*60*60*1000));
     var expires = "expires="+d.toGMTString();
     document.cookie = cname+"="+cvalue+"; "+expires;
    }
    function getCookie(cname){
     var name = cname + "=";
     var ca = document.cookie.split(';');
     for(var i=0; i<ca.length; i++) {
      var c = ca[i].trim();
      if (c.indexOf(name)==0) { return c.substring(name.length,c.length); }
     }
     return "";
    }
    function checkCookie(){
     var user=getCookie("username");
     if (user!=""){
      alert("欢迎 " + user + " 再次访问");
     }
     else {
      user = prompt("请输入你的名字:","");
        if (user!="" && user!=null){
          setCookie("username",user,30);
         }
     }
    }
    </script>
    </head>
     
    <body onload="checkCookie()"></body>
     
    </html>

    声明:这是本人抄袭过来的!

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  • 原文地址:https://www.cnblogs.com/daran/p/10431682.html
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