利用Cookie防止刷新的在线考试倒计时JS代码

$(function() {
            var _minute = parseInt("${exampaper.paperTime }");
            var _expiresHours = _minute * 60 * 1000;
                
            if(!hasSetCookie()){
                addCookie("${examinee.examineeId}", _expiresHours, _expiresHours);
            } 
            settime($("#remainTime")); 
        });
        function hasSetCookie(){
            var strCookie = document.cookie;
            var arrCookie = strCookie.split("; ");
            for (var i = 0; i  0) {
                var date = new Date();
                date.setTime(date.getTime() + expiresHours * 1000);
                cookieString = cookieString + ";expires=" + date.toUTCString();
            }
            document.cookie = cookieString;
        }
  
        //修改cookie的值
        function editCookie(name, value, expiresHours) {
            var cookieString = name + "=" + escape(value);
            if (expiresHours > 0) {
                var date = new Date();
                date.setTime(date.getTime() + expiresHours * 1000); //单位是毫秒
                cookieString = cookieString + ";expires=" + date.toGMTString();
            }
            document.cookie = cookieString;
        }
  
        //根据名字获取cookie的值
        function getCookieValue(name) {
            var strCookie = document.cookie;
            var arrCookie = strCookie.split("; ");
            for (var i = 0; i