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C# String.Format格式说明

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C#格式化数值结果表

字符

说明

示例

输出

C 货币 string.Format("{0:C3}", 2) $2.000
D 十进制 string.Format("{0:D3}", 2) 002
E 科学计数法 1.20E+001 1.20E+001
G 常规 string.Format("{0:G}", 2) 2
N 用分号隔开的数字 string.Format("{0:N}", 250000) 250,000.00
X 十六进制 string.Format("{0:X000}", 12) C
    string.Format("{0:000.000}", 12.2) 012.200

Strings

There really isn't any formatting within a strong, beyond it's alignment. Alignment works for any argument being printed in a String.Format call.

 

 

Sample Generates
String.Format("->{1,10}<-", "Hello"); -> Hello<-
String.Format("->{1,-10}<-", "Hello"); ->Hello <-

Numbers

Basic number formatting specifiers:

 

 

Specifier Type Format

Output
(Passed
Double 1.42)

Output
(Passed
Int -12400)

c Currency {0:c} $1.42 -$12,400
d Decimal (Whole number) {0:d} System.
FormatException
-12400
e Scientific {0:e} 1.420000e+000 -1.240000e+004
f Fixed point {0:f} 1.42 -12400.00
g General {


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