/*  *設(shè)置Cookie  *  * name:cookie所對(duì)應(yīng)的鍵  * value:cookie所對(duì)應(yīng)的值  * expires:cookie所對(duì)應(yīng)的有效時(shí)間  * path:指定可訪問cookie的路徑  * domain:指定可訪問cookie的主機(jī)名  * secure:安全性  */ function setCookie (name,value,expires,path,domain,secure) {     //cookie鍵值對(duì)    var str = name + "=" + escape(value);   //設(shè)置cookie的有效期,以小時(shí)為單位   if(expires > 0){                     var date = new Date();     var ms = expires * 3600 * 1000;     date.setTime(date.getTime() + ms);     str += "; expires=" + date.toGMTString();   }   if(path){     str += "; path=" + path;   }   if(domain){     str += "; domain=" + domain;   }   if(secure){     str += "; secure";   }   document.cookie = str; } /*  *獲得Cookie  *  *cookie_name:cookie的鍵  */ function getCookie(cookie_name)  {      var value = null;   var allcookies = document.cookie;    var cookie_pos = allcookies.indexOf(cookie_name);    // 如果找到了索引，就代表cookie存在，    // 反之，就說明不存在。    if (cookie_pos != -1)    {      // 把cookie_pos放在值的開始，只要給值加1即可。      cookie_pos += cookie_name.length + 1;      var cookie_end = allcookies.indexOf(";", cookie_pos);      if (cookie_end == -1)      {         cookie_end = allcookies.length;      }      value = unescape(allcookies.substring(cookie_pos, cookie_end));    }    return value;  }  /*  *刪除Cookie  *  *cookie_name:cookie的鍵  */ function delCookie(cookie_name) {   var exp = new Date();   exp.setTime(exp.getTime() - 1);   var value = getCookie(cookie_name);   if(value){     document.cookie= cookie_name + "=" + value + ";expires=" + exp.toGMTString();   } }