2007-09-01 00 00 00这样的格式如何得到年月日格式,不要后面的0

Console.WriteLine(DateTime.Now.ToString("yyyy-MM-dd"));
这才是对的上面的都是些什么呀。。。
string d1 = DateTime.Now.Date.ToShortDateString();//2004-8-12
string d2 = DateTime.Now.ToShortTimeString();//16:42
string d3 = DateTime.Now.ToString("yyyy-MM-dd hh:mm:ss");//2004-08-12 04:42:34
string d4 = DateTime.Now.ToString("yyyy-MM-dd");//2004-08-12
string d5 = DateTime.Now.ToString("HH:mm:ss");//16:42:41

DateTime d = Convert.ToDateTime("2007-9-1 00:00:00");
Response.Write(d.ToString("d"));

string dt=DateTime.Parse ("2007-09-01 00 00 00").ToShortDateString ();

Convert.ToDateTime("2007-9-1 00:00:00").ToShortDateString()

string d = Convert.ToDateTime("2007-9-1 00:00:00").ToShortDateString ();
Response.Write(d);

DateTime dt = DateTime.Parse("2007-9-1 00:00:00");
string date = dt.