C # learning notes (2) time format strings,

C # learning notes (2) time format strings,

1. The fixed time formats output by the following four time formatting symbols should be the same in the settings of each region:

String in standard format	Defined by the DateTimeFormatInfo. InvariantInfo attribute	Custom Format String
"O" or "o"	None	Yyyy '-'mm'-'dd't'hh': 'mm': 'ss'. 'fffffffzz
"R" or "r"	RFC1123Pattern	Ddd, dd MMM yyyy HH ': 'mm': 'ss' gmt'
"S"	SortableDateTimePattern	Yyyy '-'mm'-'dd't'hh': 'mm': 'ss
"U"	UniversalSortableDateTimePattern	Yyyy '-'mm'-'dd hh': 'mm': 'ss 'Z'

 

 

 

 

 

 

 

2. Use the DateTimeFormatInfo. GetAllDateTimePatterns (char) function to obtain the custom format string corresponding to the standard formatted string.

1 using System; 2 using System. globalization; 3 4 public class Example 5 {6 public static void Main () 7 {8 Console. writeLine ("'d 'standard format string:"); 9 foreach (var customString in DateTimeFormatInfo. currentInfo. getAllDateTimePatterns ('D') 10 // output the custom formatting string corresponding to the "d" standard formatting character 11 Console. writeLine ("{0}", customString); 12} 13}