JS操作cookies

        //js操作cookies
        //设置cookies


        setCookie("name", "张三")
        setCookie("sex", "1")
        setCookie("age", "2")
        setCookie("calss", "张三")
        alert(getCookie("sex"))
        alert(delCookie("sex"))
      
        function setCookie(name, value)
        {
            var date = new Date();
            var expires = 10; 
            date.setTime(date.getTime() + expires * 24 * 60 * 60 * 1000)
            //添加cookies设置过期时间
            document.cookie = name + "=" + value + ";expires=" + date.toGMTString();        
        }

        //获取cookies
        function getCookie(name)
        {
            var arr = document.cookie.split(';');
            for (var i = 0; i < arr.length; i++)
            {
                var arr2 = arr[i].split('=');
                if (arr2[0] == name)
                {
                    return arr2[1];
                }
            }
         
        }
        //删除cookis
        function delCookie(name) {
            var exp = new Date();
            exp.setTime(exp.getTime() - 1);
            var cval = getCookie(name);
            if (cval != null)
            {
                document.cookie = name + "=" + cval + ";expires=" + exp.toGMTString();

            }
             
        }