1. Various commonly used digital formattingCurrency conversion C or C (2 digits after the default decimal point). C3 followed by the number represents the decimal after several)
String. Format ("{0:c}", a) <==>a.tostring ("C")//$2.50
String. Format ("{0:c3}", a) <==>a.tostring ("C3")//$2.500 converted to decimal number D or D a=25 string. Format ("{0:d}", a) <==>b.tostring ("D")//is converted to a decimal string. Format ("{0:d5}", a) <==>a.tostring ("D5")//00025 scientific type Count E or e a=250000 string. Format ("{0:e}", a) <==>a.tostring ("E")//2.500000e+005 fixed point F or F a=25 string. Format ("{0:f}", a) <==>a.tostring ("F")//25 string. Format ("{0:f2}", a) <==>a.tostring ("F2")//25.00 general numeric G or G a=2.5 string. Format ("{0:g}", a) <==>a.tostring ("G")//2.5 number converts n or n a=2500000 string. Format ("{0:n}", a) <==>a.tostring ("N")//2,500,000.00 is converted to a hexadecimal x or x a=250 string. Format ("{0:x}", a) <==>a.tostring ("X")//2,500,000.00//far or R string. Format ("{0:r}", a), <==>b.tostring ("R");//round-off without loss of precision-integer not allowed, error 1234.12543
2. Custom mode output:
0 Description: Placeholder, if possible, fill bit # Description: Placeholder, if possible, fill bit (with 0 of the padding is different). Description: Decimal, Description: Number grouping, also used for multiplier
String. Format ("{0:000000}", a);//001234
String. Format ("{0:000000.00}", b);//004321.13
String. Format ("{0:0#0####}", a);//0001234 (#被逼填充位)
String. Format ("{0:#####}", a);//1234 (#尽可能的不填充)
b = 87654321.12543;
A = 12345678;
, Description: Number grouping, also used in multiplier
String. Format ("{0:0,00}", a);//12,345,678
String. Format ("{0:0,00}", b);//87,654,321
String. Format ("{0:0,}", a);//12346
String. Format ("{0:0,}", b);//87654
String. Format ("{0:0,,}", a);//12
String. Format ("{0:0,,}", b);//88
String. Format ("{0:0,,,}", a);//0
String. Format ("{0:0,,,}", b);//0
% Description: Format is a percentage of string. Format ("{0:p}", a);//40.00%
String. Format ("{0:0%}", a);//1,234,567,800%
String. Format ("{0:#%}", b);//8,765,432,113%
String. Format ("{0:0.00%}", a);//1,234,567,800%
String. Format ("{0:#.00%}", b);//8,765,432,112,.54%
' ABC ' Description: Display text within single quotation marks
String. Format ("{0: ' text ' 0}", a);//Text 12345678
String. Format ("{0: Text 0}", b);//Text 87654321
\ Description: followed by 1 characters to print the word, also for the transfer character \ n, etc.
String. Format ("\" Hello!) \ "");//"Hello!" "
String. Format ("\\c\\books\\new\\we.asp");//\c\books\new\we.asp
@ Description: followed by the character to print the word,
String. Format (@ "" "Hello! """); Hello "To print" you need to enter two pairs to
String. Format (@ "\c\books\new\we.asp");//\c\books\new\we.asp
3. Date Conversion
Date {0:d} November 25, 2006
Date {0:d} 2006-11-25
Date {0:f} November 25, 2006 10:30
Date {0:f} November 25, 2006 10:30:00
Date {0:s} 2006-11-26 10:30:00
Time {0:t} 10:30:00 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 ();//November 5, 2005
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 ();//question mark is a time period
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 ();//November 2005
Dt. Getdatetimeformats (' D ') [0]. ToString ();//November 5, 2005
Dt. Getdatetimeformats (' D ') [1]. ToString ();//2005 11 05
Dt. Getdatetimeformats (' D ') [2]. ToString ();//Saturday 2005 11 05
Dt. Getdatetimeformats (' D ') [3]. ToString ();//Saturday November 5, 2005
Dt. Getdatetimeformats (' M ') [0]. ToString ();//November 5
Dt. Getdatetimeformats (' f ') [0]. ToString ();//November 5, 2005 14:06
Dt. Getdatetimeformats (' g ') [0]. ToString ();//2005-11-5 14:06
Dt. Getdatetimeformats (' R ') [0]. ToString ();//sat, 2005 14:06:25 GMT
String. Format ("{0:d}", DT);//2005-11-5
String. Format ("{0:d}", dt);//November 5, 2005
String. Format ("{0:f}", dt);//November 5, 2005 14:23
String. Format ("{0:f}", dt);//November 5, 2005 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);//November 5
String. Format ("{0:r}", DT);//sat, 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);//November 5, 2005 6:23:23
String. Format ("{0:y}", dt);//November 2005
String. Format ("{0}", dt);//2005-11-5 14:23:23
String. Format ("{0:yyyymmddhhmmssffff}", DT);
C#:string. Format number formatted output
