DateTime.Now.Year;
                DateTime.Now.Month;
                DateTime.Now.Day;
                DateTime.Now.Hour;
                DateTime.Now.Minute;
                DateTime.Now.Second;

------解决方案--------------------
同意上面的.

------解决方案--------------------
Convert.ToDateTime(DateTime.Now.Year.ToString()+"-"+DateTime.Now.Month.ToString()+"-"+DateTime.Now.Day.ToString());

Convert.ToDateTime(DateTime.Now.Hour.ToString()+"-"+DateTime.Now.Minute.ToString()+"-"+DateTime.Now.Second.ToString());

就行了.



------解决方案--------------------
直接
第一个
String.Format("yy-MM-dd")
第二个
String.Format("HH-mm-ss")