C # String.Format Daquan

C # String.Format Daquan

Method	Results	Description
String. Format ("{0:d3}", 23)	023	Formatting decimal digits
String. Format ("{0:d2}", 1223)	1223	The precision specifier indicates the minimum number of digits required in the result string
12345.ToString ("n");	Generate 12,345.00	Thousands separated, two decimals numbers separated by semicolons and specified by the number of digits after the decimal point
String. Format ("{0:n}", 14200)	14,200.00	The default is two digits after the decimal point
String. Format ("{0:n3}", 14200.2458)	14,200.246	Auto rounding
12345.ToString ("E");	Build 1.234500e+004	Scientific counting method
12345.ToString ("F4");	Build 12345.0000	Keep decimal digits
12345.ToString ("F")	?	Sentinel
12345.ToString ("X"); 12345.ToString ("x4"); 12345.ToString ("X2");	Build 3039 (16 binary)	HEX Uppercase and lowercase
General "G" and "G"	?	?
12345.ToString ("G"); 12345.ToString ("G");	?	Conventional
?	?	?
Custom number formats	?	?
String.Format ("{0:00.0000}", 1500.42)	1500.4200	Zero placeholder
String.Format ("{0: (#). # #}", 1500.42)	(1500). 42	Digit placeholder
String.Format ("{0:0.0}", 1500.42)	1500.4	Decimal point
String.Format ("{0:0,0}", 1500.42)	1,500	?
String.Format ("{0:0,.}", 1500.42)	2	?
String.Format ("{0:0%}", 1500.42)	150,042%	Percentage
String.Format ("{0:00e+0}", 1500.42)	15e+2	Index placeholder
?	?	?
Currency	?	?
12345.ToString ("C");	Generate ￥12,345.00	Currency symbol, thousands separated, two decimals
String. Format ("{0:c}", 0.2)	￥0.20	English operating system results: $0.20 Related to the environment of the system
String. Format ("{0:c1}", 23.15)	￥23.2	(Intercept will be rounded automatically)
String. Format ("Market price:{0:c}, preferential price {1:c}", 23.15,19.82)	?	Formatting multiple instances of object
String.Format ("{0:￥#,# #0.00; (￥#,# #0.00); 0}", 98005.30)	￥98,005.30	Amount, thousands separator, two decimals
String.Format ("{0:￥#,# #0.00; (￥#,# #0.00); 0}",-98005.30)	(￥98,005.30)	Amount, thousands separator, two decimals Negative numbers in parentheses
String.Format ("{0:￥#,# #0.00; (￥#,# #0.00); 0}", 0)	Zero	Amount, thousands separator, two decimals 0 value in text representation
?	?	?
Percentage	?	?
12345.ToString ("P");	Generate 1,234,500.00%	Percent, thousands separated, two decimals
String. Format ("{0:p}", 0.24583)	24.58%	Two decimal places with the default retention percent
String. Format ("{0:P1}", 0.24583)	24.6%	Auto rounding
?	?	?
Roundtrip process
Double.tostring ("R") double.tostring ("R") Single.tostring ("R") single.tostring ("R")	?	Round-trip procedure for double and single
?	?	?
Zero placeholder and digit placeholder
String. Format ("{0:0000.00}", 12394.039)	12394.04	?
String. Format ("{0:0000.00}", 194.039)	0194.04	?
String. Format ("{0:###.##}", 12394.039)	12394.04	?
String. Format ("{0:####.#}", 194.039)	194	?
?	?	?
Date Time	?	?
String. Format ("{0:d}", System.DateTime.Now)	2009-3-20	Month position is not 03
String. Format ("{0:d}", System.DateTime.Now)	March 20, 2009	?
String. Format ("{0:f}", System.DateTime.Now)	March 20, 2009 15:37	?
String. Format ("{0:f}", System.DateTime.Now)	March 20, 2009 15:37:52	?
String. Format ("{0:g}", System.DateTime.Now)	2009-3-20 15:38	?
String. Format ("{0:g}", System.DateTime.Now)	2009-3-20 15:39:27	?
String. Format ("{0:m}", System.DateTime.Now)	March 20	?
String. Format ("{0:t}", System.DateTime.Now)	15:41	?
String. Format ("{0:t}", System.DateTime.Now)	15:41:50	?
String. Format ("{0:r}", System.DateTime.Now)	Sun, June 10:12:56 GMT	RFC1123 Date format
String. Format ("{0:s}", System.DateTime.Now)	2012-06-17t10:15:12	Sort Date String
String. Format ("{0:y}", System.DateTime.Now)	June 2012	?
String. Format ("{0:u}", System.DateTime.Now)	June 17, 2012 2:19:51	General Sort, GMT time
String. Format ("{0:u}", System.DateTime.Now)	2012-06-17 10:19:51z	General sort, local time
?	?	?
Date Time (Custom)	?	?
{0:DD}	10	Day
{0:DDD}	Tue	Day name
{0:DDDD}	Tuesday	Full day name
{0:FFF}	932	Milliseconds
{0:GG}	A.D.	Era
{0:HH}	10	2 digit Hour
{0:HH}	22	2 digit hour, 24hr format
{0:mm}	38	Minute 00-59
{0:mm}	12	Month 01-12
{0:mmm}	Dec	Month abbreviation
{0:mmmm}	December	The name of the month
{0:SS}	46	Number of seconds from 00 to 59
{0:TT}	Pm	Am or PM (morning or afternoon)
{0:YY}	02	Year (two digits)
{0:YYYY}	2002	Years
{0:zz}	-05	Timezone Offset, 2 digits
{0:ZZZ}	-05:00	Full timezone offset
{0:HH:MM:SS}	10:43:20	Separator
{0:DD/MM/YYYY}	10/12/2002	Separator
?	?	?
String	?	?
String.Format ("->{0,10}<-", "Hello");	hello<-	At least 10 characters, not enough front (positive) fill empty
String.Format ("->{0,-10}<-", "Hello")	->hello <-	At least 10 characters, not enough back (negative) to fill empty
?	?	?
Phone Number Customization	?	?
String.Format ("{0: (# # #) ###-####}", 18005551212)	(1800) 555-1212	?
String.Format ("{0: (# #) ####-########}", 86075487870252)	(86) 0754-87870252	?
String.Format ("{0: (# #) ####-########}", 086075487870252)	(86) 0754-87870252	?
?	?	?
Zero placeholder "0"	?	?
int i=120; Console.WriteLine (i.ToString ("00,000.00")); Console.WriteLine ("{0:00,000.00}", i);	00,120.00	?
?	?	?
Digit placeholder "#"	?	?
Double d=12050.8520; Console.WriteLine (d.tostring ("##,###.##")); Console.WriteLine ("{0:##,###.##}", D);	12,050.85	?
?	?	?
?	?	?

C # String.Format Daquan