From: http://www.cnblogs.com/bignjl/archive/2011/01/14/1935645.html
C # tostring () format string format value: Sometimes, we may need to present the value in a certain format, and we need to format the value. We use a format string to specify the
Asp tutorial. net tostring format Daquan and convert. tostring differenceGenerally, there are four methods for object to string: (assume object obj) obj. tostring, convert. tostring, (string) obj, obj as string.They can all convert object objects to
C
Currency
2.5.tostring ("C ")
¥2.50
D
Decimal number
25. tostring ("D5 ")
00025
E
Scientific type
25000. tostring ("e ")
2.500000e + 005
F
Fixed Point
25.
C
Currency
2.5.ToString("C")
¥2.50
D
Decimal number
ToString("D5")
00025
E
Scientific type
25000.ToString("E")
2.500000E+005
F
Fixed point
ToString("F2")
In daily development, there are many situations of format strings. I often forget it, and it is a little difficult to check it. So today I will spend some time organizing it.
The format string is formatted by numbers, dates, and enumerations.
I.
For example, a string that formats a numeric format string-----currency-----. ToString ("C");. ToString ("C"), Example 2.5.ToString ("C")->¥2.50-----decimal-----. ToString ("D");. ToString ("D"); example 123.ToString ("D8")--00000123-----Science
Some common uses of ToString () in C #
MemoCharacter conversion to string//C currency 2.5.ToString ("C"); ¥2.50//D 10 number 25.ToString ("D5"); 25000//E Scientific type 25000.ToString ("E"); 2.500000E+005//F fixed point 25.ToString ("F2");
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