/** 写入时间字符串表示(ms),onlyDay仅仅需要显示到天 */
public static void writeTimeStr(StringBuilder sb, long time, bool onlyDay = false)
{
DateData date = new DateData();
date.initByTimeMillis(time);
date.writeToStringBuilder(sb, onlyDay);
}
/** 获取下一个cron时刻(ms) */
public static DateData getNextCronDate(string cron, DateData data)
{
DateData date = new DateData();
date.initByTimeMillis(getNextCronTime(cron, data.getTimeMillis()));
return(date);
}