æ¹æ³ä¸ï¼Convert.ToDateTime(string)
stringæ ¼å¼æè¦æ±ï¼å¿
é¡»æ¯yyyy-MM-dd hh:mm:ss
================================================
æ¹æ³äºï¼Convert.ToDateTime(string, IFormatProvider)
DateTime dt;
DateTimeFormatInfo dtFormat = new System.GlobalizationDateTimeFormatInfo();
dtFormat.ShortDatePattern = "yyyy/MM/dd";
dt = Convert.ToDateTime("2011/05/26", dtFormat);
================================================
æ¹æ³äºï¼DateTime.ParseExact()
string dateString = "20110526";
DateTime dt = DateTime.ParseExact(dateString, "yyyyMMdd", System.Globalization.CultureInfo.CurrentCulture);
æè
DateTime dt = DateTime.ParseExact(dateString, "yyyyMMdd", System.Globalization.CultureInfo.InvariantCulture);
éåèä¿¡æ¯ï¼
CultureInfo cultureInfo = CultureInfo.CreateSpecificCulture("en-US");
string format = "ddd MMM d HH:mm:ss zz00 yyyy";
string stringValue = DateTime.Now.ToString(format, cultureInfo); // å¾å°æ¥æå符串
DateTime datetime = DateTime.ParseExact("Wed Aug 25 16:28:03 +0800 2010", format, cultureInfo); // å°å符串转æ¢ææ¥æ
å
¶ä»
æ¥ææ ¼å¼ï¼yyyyMMdd HH:mm:ssï¼æ³¨ææ¤å符串çåæ¯å¤§å°åå¾ä¸¥æ ¼ï¼
yyyyï¼ä»£è¡¨å¹´ä»½
MMï¼ ä»£è¡¨æ份
ddï¼ ä»£è¡¨å¤©
HHï¼ ä»£è¡¨å°æ¶ï¼24å°æ¶å¶ï¼
mmï¼ ä»£è¡¨åé
ssï¼ ä»£è¡¨ç§
DateTime.Now.ToShortTimeString()
DateTime dt = DateTime.Now;
dt.ToString();//2005-11-5 13:21:25
dt.ToFileTime().ToString();//127756416859912816
dt.ToFileTimeUtc().ToString();//127756704859912816
dt.ToLocalTime().ToString();//2005-11-5 21:21:25
dt.ToLongDateString().ToString();//2005å¹´11æ5æ¥
dt.ToLongTimeString().ToString();//13:21:25
dt.ToOADate().ToString();//38661.5565508218
dt.ToShortDateString().ToString();//2005-11-5
dt.ToShortTimeString().ToString();//13:21
dt.ToUniversalTime().ToString();//2005-11-5 5:21:25
dt.Year.ToString();//2005
dt.Date.ToString();//2005-11-5 0:00:00
dt.DayOfWeek.ToString();//Saturday
dt.DayOfYear.ToString();//309
dt.Hour.ToString();//13
dt.Millisecond.ToString();//441
dt.Minute.ToString();//30
dt.Month.ToString();//11
dt.Second.ToString();//28
dt.Ticks.ToString();//632667942284412864
dt.TimeOfDay.ToString();//13:30:28.4412864
dt.ToString();//2005-11-5 13:47:04
dt.AddYears(1).ToString();//2006-11-5 13:47:04
dt.AddDays(1.1).ToString();//2005-11-6 16:11:04
dt.AddHours(1.1).ToString();//2005-11-5 14:53:04
dt.AddMilliseconds(1.1).ToString();//2005-11-5 13:47:04
dt.AddMonths(1).ToString();//2005-12-5 13:47:04
dt.AddSeconds(1.1).ToString();//2005-11-5 13:47:05
dt.AddMinutes(1.1).ToString();//2005-11-5 13:48:10
dt.AddTicks(1000).ToString();//2005-11-5 13:47:04
dt.CompareTo(dt).ToString();//0
dt.Add(?).ToString();//é®å·ä¸ºä¸ä¸ªæ¶é´æ®µ
dt.Equals("2005-11-6 16:11:04").ToString();//False
dt.Equals(dt).ToString();//True
dt.GetHashCode().ToString();//1474088234
dt.GetType().ToString();//System.DateTime
dt.GetTypeCode().ToString();//DateTime
dt.GetDateTimeFormats('s')[0].ToString();//2005-11-05T14:06:25
dt.GetDateTimeFormats('t')[0].ToString();//14:06
dt.GetDateTimeFormats('y')[0].ToString();//2005å¹´11æ
dt.GetDateTimeFormats('D')[0].ToString();//2005å¹´11æ5æ¥
dt.GetDateTimeFormats('D')[1].ToString();//2005 11 05
dt.GetDateTimeFormats('D')[2].ToString();//ææå
2005 11 05
dt.GetDateTimeFormats('D')[3].ToString();//ææå
2005å¹´11æ5æ¥
dt.GetDateTimeFormats('M')[0].ToString();//11æ5æ¥
dt.GetDateTimeFormats('f')[0].ToString();//2005å¹´11æ5æ¥ 14:06
dt.GetDateTimeFormats('g')[0].ToString();//2005-11-5 14:06
dt.GetDateTimeFormats('r')[0].ToString();//Sat, 05 Nov 2005 14:06:25 GMT
string.Format("{0:d}",dt);//2005-11-5
string.Format("{0}",dt);//2005å¹´11æ5æ¥
string.Format("{0:f}",dt);//2005å¹´11æ5æ¥ 14:23
string.Format("{0:F}",dt);//2005å¹´11æ5æ¥ 14:23:23
string.Format("{0:g}",dt);//2005-11-5 14:23
string.Format("{0:G}",dt);//2005-11-5 14:23:23
string.Format("{0:M}",dt);//11æ5æ¥
string.Format("{0:R}",dt);//Sat, 05 Nov 2005 14:23:23 GMT
string.Format("{0:s}",dt);//2005-11-05T14:23:23
string.Format("{0:t}",dt);//14:23
string.Format("{0:T}",dt);//14:23:23
string.Format("{0:u}",dt);//2005-11-05 14:23:23Z
string.Format("{0:U}",dt);//2005å¹´11æ5æ¥ 6:23:23
string.Format("{0:Y}",dt);//2005å¹´11æ
string.Format("{0}",dt);//2005-11-5 14:23:23
string.Format("{0:yyyyMMddHHmmssffff}",dt);
计ç®2个æ¥æä¹é´ç天æ°å·®
-----------------------------------------------
DateTime dt1 = Convert.DateTime("2007-8-1");
DateTime dt2 = Convert.DateTime("2007-8-15");
TimeSpan span = dt2.Subtract(dt1);
int dayDiff = span.Days + 1;
计ç®æå¹´ææç天æ°
-----------------------------------------------
int days = DateTime.DaysInMonth(2007, 8);
days = 31;
ç»æ¥æå¢å ä¸å¤©ãåå°ä¸å¤©
-----------------------------------------------
DateTime dt =DateTime.Now;
dt.AddDays(1); //å¢å ä¸å¤©
dt.AddDays(-1);//åå°ä¸å¤©
å
¶å®å¹´ä»½æ¹æ³ç±»ä¼¼...
Oracle SQLé转æ¢æ¥æå½æ°
-----------------------------------------------
to_date("2007-6-6",'YYYY-MM-DD");
to_date("2007/6/6",'yyyy/mm/dd");
温馨提示:答案为网友推荐,仅供参考