/** * 比较两个日期大小,日期格式为yyyy-MM-dd HH:mm:ss */function dateCompare(startDate, endDate) {    var start = new Date(startDate).getTime();    var end = new Date(endDate).getTime();    if (end >= start) {        return true;    }    return false;}/** * 格式化当前日期为yyyy-MM-dd HH:mm:ss */function getNowFormatDate() {    var date = new Date();    var year = date.getFullYear(); //获取完整的年份(1970开始)    var month = date.getMonth() + 1;//获取当月(0-11)    var strDate = date.getDate();  //获取当天(1-31)    if (month >= 1 && month <= 9) {        month = "0" + month;    }    if (strDate >= 0 && strDate <= 9) {        strDate = "0" + strDate;    }    return year + "-" + month + "-" + strDate + " " + date.getHours() + ":" + date.getMinutes() + ":" + date.getSeconds();}/** * 将毫秒转换为指定格式的日期 */function format(time) {    var t = new Date(time);    var format = "yyyy-MM-dd HH:mm:ss";    var tf = function (i) {        return (i < 10 ? '0' : '') + i    };    return format.replace(/yyyy|MM|dd|HH|mm|ss/g, function (a) {        switch (a) {            case 'yyyy':                return tf(t.getFullYear());                break;            case 'MM':                return tf(t.getMonth() + 1);                break;            case 'mm':                return tf(t.getMinutes());                break;            case 'dd':                return tf(t.getDate());                break;            case 'HH':                return tf(t.getHours());                break;            case 'ss':                return tf(t.getSeconds());                break;        }    })}