c# 自定义日期的时分秒

1 datetime begintime = datetime.now.date;
2 console.writeline(begintime);
3 datetime endtime = new datetime(datetime.now.year, datetime.now.month, datetime.now.day, 23, 59, 59);
4 console.writeline(endtime);
5 datetime customtime = new datetime(2018,09,03,14,30,20);
6 console.writeline(customtime);