int a = 12345678;
Format is sring output
Label1.Text = string. Format ("Asdfadsf{0}adsfasdf", a);
Label2.Text = "ASDFADSF" +a.tostring () + "ADSFASDF";
Label1.Text = string. Format ("Asdfadsf{0:c}adsfasdf", a);//ASDFADSF￥1,234.00ADSFASDF
Label2.Text = "ASDFADSF" +a.tostring ("C") + "ADSFASDF";//asdfadsf￥1,234.00adsfasdf
Double b = 1234.12543;
A = 12345678;
Format is a special string-style output
Label1.Text = string. Format ("Asdfadsf{0:c}adsfasdf", b);//asdfadsf￥1,234.13adsfasdf
Label2.Text = "ASDFADSF" +b.tostring ("C") + "ADSFASDF";//asdfadsf￥1,234.13adsfasdf
Label1.Text = string. Format ("{0:c3}", b);//￥1,234.125
Label2.Text = b.tostring ("C3");//￥1,234.125
Label1.Text = string. Format ("{0:d}", a);//Decimal--12345678
Label2.Text = b.tostring ("D");//decimal--same type, conversion error
Label1.Text = string. Format ("{0:e}", a);//Index--1.234568e+007
Label2.Text = b.tostring ("e");//Index--1.234125e+003
Label1.Text = string. Format ("{0:f}", a);//fixed-point number--12345678.00
Label2.Text = B.tostring ("f");//fixed-point number--1234.13
Label1.Text = string. Format ("{0:n}", a);//Numeric--12,345,678.00
Label2.Text = B.tostring ("n");//Numeric--1,234.13
Label1.Text = string. Format ("{0:x}", a);//Hex--bc614e
Label2.Text = b.tostring ("x"),//16--with decimal cannot be converted, error
Label1.Text = string. Format ("{0:g}", a);//Universal is the most compact--12345678
Label2.Text = b.tostring ("G");//Universal is the most compact--1234.12543
Label1.Text = string. Format ("{0:r}", a);//round-off without loss of precision-integer not allowed, error
Label2.Text = b.tostring ("R");//no loss of precision--1234.12543
b = 4321.12543;
A = 1234;
Custom mode output:
0 Description: Placeholder, if possible, fill bit
Label1.Text = string. Format ("{0:000000}", a);//001234
Label2.Text = string. Format ("{0:000000}", b);//004321
# Description: Placeholder, if possible, fill bit
Label1.Text = string. Format ("{0:#######}", a);//1234
Label2.Text = string. Format ("{0:#######}", b);//4321
Label1.Text = string. Format ("{0: #0 # #}", a);//01234
Label2.Text = string. Format ("{0:0#0000}", b);//004321
// . Description: decimal point
Label1.Text = string. Format ("{0:000.000}", a);//1234.000
Label2.Text = string. Format ("{0:000.000}", b);//4321.125
b = 87654321.12543;
A = 12345678;
, Description: Number grouping, also used in multiplier
Label1.Text = string. Format ("{0:0,00}", a);//12,345,678
Label2.Text = string. Format ("{0:0,00}", b);//87,654,32
Label1.Text = string. Format ("{0:0,}", a);//12346
Label2.Text = string. Format ("{0:0,}", b);//87654
Label1.Text = string. Format ("{0:0,,}", a);//12
Label2.Text = string. Format ("{0:0,,}", b);//88
label1.text = string. Format ("{0:0,,,}", a);// 0// label2.text = string. Format ("{0:0,,,}", b);// 0// % description: Formatted as a percentage// label1.text = String. Format ("{0:0%}", a);// 1234567800%// label2.text = string. Format ("{0:#%}", b);// 8765432113%// label1.text = string. Format ("{0:0.00%}", a);// 1234567800.00%// label2.text = string. Format ("{0:#.00%}", b);// 8765432112.54%// ' abc ' Description: Displays text within single quotation marks// Label1.text = string. Format ("{0: ' text ' 0}", a);// text 12345678// label2.text = string. Format ("{0:0}", b);// text 87654321// / Description: followed by 1 characters to print the word, also for the transfer character/n etc// Label1.text = string. Format ("/" Hello!) /"");// "Hello!" "// label2.text = string. Format ("//c//books//new//we.ASP ");///c/books/new/we.asp// @ Description: followed by the character to print the word,// label1.text = String. Format (@ "" "Hello! ""); // "Hello!" To print, you need to enter two pairs before you can// label2.text = string. Format (@ "/c/books/new/we.asp"); the///c/books/new/we.asp percentage should be in the "P" parameter. Format RAW data knots fruit "{0:p}" 0.40 40%
Number {0:N2} 12.36
Number {0:n0} 13
Currency {0:C2} $12.36
Currency {0:C4} $12.3656
Currency "￥{0:n2}" ￥12.36
Science notation {0:E3} 1.23E+001
Percent {0:p} 12.25% p and p present the same.
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;
Label1.Text = dt. ToString ();//2005-11-5 13:21:25
Label2.Text = dt. Tofiletime (). ToString ();//127756416859912816
Label3.text = dt. TOFILETIMEUTC (). ToString ();//127756704859912816
Label4.text = dt. ToLocalTime (). ToString ();//2005-11-5 21:21:25
Label5.text = dt. Tolongdatestring (). ToString ();//November 5, 2005
Label6.text = dt. Tolongtimestring (). ToString ();//13:21:25
Label7.text = dt. ToOADate (). ToString ();//38661.5565508218
Label8.text = dt. ToShortDateString (). ToString ();//2005-11-5
Label9.text = dt. Toshorttimestring (). ToString ();//13:21
Label10.text = dt. ToUniversalTime (). ToString ();//2005-11-5 5:21:25
Label1.Text = dt. Year.tostring ();//2005
Label2.Text = dt. Date.tostring ();//2005-11-5 0:00:00
Label3.text = dt. Dayofweek.tostring ();//saturday
Label4.text = dt. Dayofyear.tostring ();//309
Label5.text = dt. Hour.tostring ();//13
Label6.text = Dt.Millisecond.ToString ();//441
Label7.text = dt. Minute.tostring ();//30
Label8.text = dt. Month.tostring ();//11
Label9.text = dt. Second.tostring ();//28label10.text = dt. Ticks.tostring ();//632667942284412864label11.text = dt. Timeofday.tostring ();//13:30:28.4412864 label1.text = dt. ToString ();//2005-11-5 13:47:04label2.text = dt. AddYears (1). ToString ();//2006-11-5 13:47:04label3.text = dt. AddDays (1.1). ToString ();//2005-11-6 16:11:04label4.text = dt. AddHours (1.1). ToString ();//2005-11-5 14:53:04label5.text = dt. Addmilliseconds (1.1). ToString ();//2005-11-5 13:47:04label6.text = dt. AddMonths (1). ToString ();//2005-12-5 13:47:04label7.text = dt. AddSeconds (1.1). ToString ();//2005-11-5 13:47:05label8.text = dt. AddMinutes (1.1). ToString ();//2005-11-5 13:48:10label9.text = dt. Addticks (1000). ToString ();//2005-11-5 13:47:04label10.text = dt.compareto (DT). ToString ();//0label11.text = dt. ADD (?). ToString ();//question mark is a time period label1.tExt = dt. Equals ("2005-11-6 16:11:04"). ToString ();//falselabel2.text = dt. Equals (DT). ToString ();//truelabel3.text = dt. GetHashCode (). ToString ();//1474088234label4.text = dt. GetType (). ToString ();//system.datetimelabel5.text = dt. GetTypeCode (). ToString ();//datetime label1.text = dt. Getdatetimeformats (' s ') [0]. ToString ();//2005-11-05t14:06:25label2.text = dt. Getdatetimeformats (' t ') [0]. ToString ();//14:06label3.text = dt. Getdatetimeformats (' y ') [0]. ToString ();//November 2005 LABEL4.TEXT = DT. Getdatetimeformats (' D ') [0]. ToString ();//November 5, 2005 Label5.text = dt. Getdatetimeformats (' D ') [1]. ToString ();//2005 11 05label6.text = dt. Getdatetimeformats (' D ') [2]. ToString ();//Saturday 2005 11 05label7.text = dt. Getdatetimeformats (' D ') [3]. ToString ();//Saturday 2005 November 5 label8.text = dt. Getdatetimeformats (' M ') [0]. ToString ();//November 5 LABEL9.TEXT = DT. Getdatetimeformats (' f ') [0]. ToString ();//November 5, 2005 14:06label10.text = dt. Getdatetimeformats (' g ') [0]. ToString ();//2005-11-5 14:06label11.text = dt. Getdatetimeformats (' R ') [0]. ToString ();//sat, 05 nov 2005 14:06:25 gmt label1.text = string. Format ("{0:d}", DT);//2005-11-5label2.text = string. Format ("{0:d}", dt);//November 5, 2005 label3.text = string. Format ("{0:f}", dt);//November 5, 2005 14:23label4.text = string. Format ("{0:f}", dt);//November 5, 2005 14:23:23label5.text = string. Format ("{0:g}", DT);//2005-11-5 14:23label6.text = string. Format ("{0:g}", DT);//2005-11-5 14:23:23label7.text = string. Format ("{0:m}", dt);//November 5 label8.text = string. Format ("{0:r}", DT);//sat, 05 nov 2005 14:23:23 gmtlabel9.text = string. Format ("{0:s}", DT);//2005-11-05t14:23:23label10.text string. Format ("{0:t}", DT);//14:23label11.text = string. Format ("{0:t}", DT);//14:23:23label12.text = string. Format ("{0:u}", DT);//2005-11-05 14:23:23zlabel13.text = string. Format ("{0:u}", dt);//November 5, 2005 6:23:23label14.text = string. Format ("{0:y}", dt);//November 2005 label15.text = string. Format ("{0}", dt);//2005-11-5 14:23:23label16.text = string. Format ("{0:yyyymmddhhmmssffff}", DT);Stringstr1 =string. Format ("{0:n1}", 56789); result:56,789.0
STRINGSTR2 =string. Format ("{0:n2}", 56789); result:56,789.00
STRINGSTR3 =string. Format ("{0:n3}", 56789); result:56,789.000
Stringstr8 =string. Format ("{0:f1}", 56789); result:56789.0
STRINGSTR9 =string. Format ("{0:f2}", 56789); result:56789.00
Stringstr11 = (56789/100.0). ToString ("#.##"); result:567.89
Stringstr12 = (56789/100). ToString ("#.##"); result:567
C or C
Currency
Console.Write ("{0:c}", 2.5); $2.50
Console.Write ("{0:c}",-2.5); ($2.50)
D or D
Decimal number
Console.Write ("{0:d5}", 25); 00025
E or E
Scientific type
Console.Write ("{0:e}", 250000); 2.500000E+005
F or F
Fixed point
Console.Write ("{0:f2}", 25); 25.00
Console.Write ("{0:f0}", 25); 25
G or G
Conventional
Console.Write ("{0:g}", 2.5); 2.5
N or
C#:string.format number format output {0:n2} {0:d2} {0:C2} and so on
