Tip之合并两个日期控件设置的时间

DateTime time = new DateTime();

time = time.AddYears(dateTimePicker1.Value.Year -1);
time = time.AddMonths(dateTimePicker1.Value.Month - 1);
time = time.AddDays(dateTimePicker1.Value.Day - 1);
time = time.AddHours(dateTimePicker2.Value.Hour);
time = time.AddMinutes(dateTimePicker2.Value.Minute);
time = time.AddSeconds(dateTimePicker2.Value.Second);