概述
一般应用与左右对齐:
protected void Button1_Click(object sender, EventArgs e)
{
TextBox1.TextMode = TextBoxMode.MultiLine;
string str;
str = string.Format("***{0}***{1}***", "ASP.Net", 3.5);
TextBox1.Text += str + "n"; //***ASP.Net***3.5***
str = string.Format("*{0,10}*", "asp");
TextBox1.Text += str + "n"; //* asp*
str = string.Format("*{0,-10}*", "asp");
TextBox1.Text += str + "n"; //*asp *
TextBox1.Text += string.Format("{0,3} : {1,-3}n", "BC", 123); // BC : 123
TextBox1.Text += string.Format("{0,3} : {1,-3}n", "C", 12); // C : 12
TextBox1.Text += string.Format("{0,3} : {1,-3}n", "ABC", 1); //ABC : 1
}
标准数字格式:
protected void Button1_Click(object sender, EventArgs e)
{
string s1,s2,s3,s4,s5,s6,s7,s8,s9,s0;
double num = 2.5;
s1 = string.Format("Cc {0:c}", num); //Cc ¥2.50
s2 = string.Format("Dd {0:d}", (int)num); //Dd 2
s3 = string.Format("E {0:E}", num); //E 2.500000E+000
s4 = string.Format("e {0:e}", num); //e 2.500000e+000
s5 = string.Format("Ff {0:f}", num); //Ff 2.50
s6 = string.Format("Gg {0:g}", num); //Gg 2.5
s7 = string.Format("Nn {0:n}", num); //Nn 2.50
s8 = string.Format("Pp {0:p}", num); //Pp 250.00%
s9 = string.Format("Rr {0:r}", num); //Rr 2.5
s0 = string.Format("Xx {0:x}", (int)num); //Xx 2
string br = "n";
TextBox1.Text = string.Concat(s1, br, s2, br, s3, br, s4, br, s5, br, s6, br, s7, br, s8, br, s9, br, s0);
}
标准数字格式的精度:
protected void Button1_Click(object sender, EventArgs e)
{
string s1,s2,s3,s4,s5,s6,s7,s8,s9,s0;
double num = 2.5;
s1 = string.Format("Cc {0:c3}", num); //Cc ¥2.500
s2 = string.Format("Dd {0:d3}", (int)num); //Dd 002
s3 = string.Format("E {0:E3}", num); //E 2.500E+000
s4 = string.Format("e {0:e3}", num); //e 2.500e+000
s5 = string.Format("Ff {0:f3}", num); //Ff 2.500
s6 = string.Format("Gg {0:g3}", num); //Gg 2.5
s7 = string.Format("Nn {0:n3}", num); //Nn 2.500
s8 = string.Format("Pp {0:p3}", num); //Pp 250.000%
s9 = string.Format("Rr {0:r3}", num); //Rr 2.5
s0 = string.Format("Xx {0:x3}", (int)num); //Xx 002
string br = "n";
TextBox1.Text = string.Concat(s1, br, s2, br, s3, br, s4, br, s5, br, s6, br, s7, br, s8, br, s9, br, s0);
}
自定义的数字格式:
protected void Button1_Click(object sender, EventArgs e)
{
string s1,s2,s3,s4,s5,s6,s7,s8,s9,s0;
double num = -1234.567;
s1 = string.Format("{0:000000.00}", num); //-001234.57
s2 = string.Format("{0:######.##}", num); //-1234.57
s3 = string.Format("{0:#,#.####}", num); //-1,234.567
s4 = string.Format("{0:0,0.0000}", num); //-1,234.5670
s5 = string.Format("{0:######.000000}", num); //-1234.567000
s6 = string.Format("{0:000000.######}", num); //-001234.567
s7 = string.Format("{0:#.00%}", num); //-123456.70%
s8 = string.Format("{0:%#.00}", num); //-%123456.70
s9 = string.Format("{0:(+|0)#.#;(-)#.#}", num); //(-)1234.6
s0 = string.Format("{0:(+)#.#;(-)#.#;(0)}", num); //(-)1234.6
string br = "n";
TextBox1.Text = string.Concat(s1, br, s2, br, s3, br, s4, br, s5, br, s6, br, s7, br, s8, br, s9, br, s0);
}
标准日期和时间格式:
protected void Button1_Click(object sender, EventArgs e)
{
string[] arr = new string[16];
DateTime dt = new DateTime(2011, 1, 2, 13, 24, 56, 789);
arr[0] = string.Format(" {0}", dt); // 2011/1/2 13:24:56
arr[1] = string.Format("d {0:d}", dt); //d 2011/1/2
arr[2] = string.Format("D {0:D}", dt); //D 2011年1月2日
arr[3] = string.Format("f {0:f}", dt); //f 2011年1月2日 13:24
arr[4] = string.Format("F {0:F}", dt); //F 2011年1月2日 13:24:56
arr[5] = string.Format("g {0:g}", dt); //g 2011/1/2 13:24
arr[6] = string.Format("G {0:G}", dt); //G 2011/1/2 13:24:56
arr[7] = string.Format("Mm {0:m}", dt); //Mm 1月2日
arr[8] = string.Format("Oo {0:o}", dt); //Oo 2011-01-02T13:24:56.7890000
arr[9] = string.Format("Rr {0:r}", dt); //Rr Sun, 02 Jan 2011 13:24:56 GMT
arr[10] = string.Format("s {0:s}", dt); //s 2011-01-02T13:24:56
arr[11] = string.Format("t {0:t}", dt); //t 13:24
arr[12] = string.Format("T {0:T}", dt); //T 13:24:56
arr[13] = string.Format("u {0:u}", dt); //u 2011-01-02 13:24:56Z
arr[14] = string.Format("U {0:U}", dt); //U 2011年1月2日 5:24:56
arr[15] = string.Format("Yy {0:y}", dt); //Yy 2011年1月
string str = "";
foreach (string s in arr) { str += s + "n"; }
TextBox1.Text = str;
}
自定义的日期和时间格式:
protected void Button1_Click(object sender, EventArgs e)
{
string [] arr = new string[44];
DateTime dt = new DateTime(2011, 1, 2, 13, 24, 56, 789);
arr[0] = string.Format("d {0:d}", dt); //d 2011/1/2
arr[1] = string.Format("dd {0:dd}", dt); //dd 02
arr[2] = string.Format("ddd {0:ddd}", dt); //ddd 周日
arr[3] = string.Format("dddd {0:dddd}", dt); //dddd 星期日
arr[4] = string.Format("f {0:f}", dt); //f 2011年1月2日 13:24
arr[5] = string.Format("ff {0:ff}", dt); //ff 78
arr[6] = string.Format("fff {0:fff}", dt); //fff 789
arr[7] = string.Format("ffff {0:ffff}", dt); //ffff 7890
arr[8] = string.Format("fffff {0:fffff}", dt); //fffff 78900
arr[9] = string.Format("ffffff {0:ffffff}", dt); //ffffff 789000
arr[10] = string.Format("fffffff {0:fffffff}", dt); //fffffff 7890000
arr[11] = string.Format("F {0:F}", dt); //F 2011年1月2日 13:24:56
arr[12] = string.Format("FF {0:FF}", dt); //FF 78
arr[13] = string.Format("FFF {0:FFF}", dt); //FFF 789
arr[14] = string.Format("FFFF {0:FFFF}", dt); //FFFF 789
arr[15] = string.Format("FFFFF {0:FFFFF}", dt); //FFFFF 789
arr[16] = string.Format("FFFFFF {0:FFFFFF}", dt); //FFFFFF 789
arr[17] = string.Format("FFFFFFF {0:FFFFFFF}", dt); //FFFFFFF 789
arr[18] = string.Format("g {0:g}", dt); //g 2011/1/2 13:24
arr[19] = string.Format("h {0:%h}", dt); //h 1
arr[20] = string.Format("hh {0:hh}", dt); //hh 01
arr[21] = string.Format("H {0:%H}", dt); //H 13
arr[22] = string.Format("HH {0:HH}", dt); //HH 13
arr[23] = string.Format("K {0:%K}", dt); //K
arr[24] = string.Format("m {0:m}", dt); //m 1月2日
arr[25] = string.Format("mm {0:mm}", dt); //mm 24
arr[26] = string.Format("M {0:M}", dt); //M 1月2日
arr[27] = string.Format("MM {0:MM}", dt); //MM 01
arr[28] = string.Format("MMM {0:MMM}", dt); //MMM 一月
arr[29] = string.Format("MMMM {0:MMMM}", dt); //MMMM 一月
arr[30] = string.Format("s {0:s}", dt); //s 2011-01-02T13:24:56
arr[31] = string.Format("ss {0:ss}", dt); //ss 56
arr[32] = string.Format("t {0:t}", dt); //t 13:24
arr[33] = string.Format("tt {0:tt}", dt); //tt 下午
arr[34] = string.Format("y {0:y}", dt); //y 2011年1月
arr[35] = string.Format("yy {0:yy}", dt); //yy 11
arr[36] = string.Format("yyy {0:yyy}", dt); //yyy 2011
arr[37] = string.Format("yyyy {0:yyyy}", dt); //yyyy 2011
arr[38] = string.Format("yyyyy {0:yyyyy}", dt); //yyyyy 02011
arr[39] = string.Format("z {0:%z}", dt); //z +8
arr[40] = string.Format("zz {0:zz}", dt); //zz +08
arr[41] = string.Format("zzz {0:zzz}", dt); //zzz +08:00
arr[42] = string.Format("{0:yyyy年MM月dd日 HH时mm分ss秒}", dt); //2011年01月02日 13时24分56秒
arr[43] = string.Format("{0:yyyy/M/d H:m:s}", dt); //2011/1/2 13:24:56
string str = "";
foreach (string s in arr) { str += s + "n"; }
TextBox1.Text = str;
}
按区域格式化:
// 需 using System.Globalization;
protected void Button1_Click(object sender, EventArgs e)
{
string s1, s2, s3, s4, s5, s6, s7, s8, s9, s0;
double num = 2.5;
DateTime dt = new DateTime(2011, 1, 2, 13, 24, 56, 789);
s1 = string.Format("{0:c}", num); //¥2.50
s2 = string.Format(new CultureInfo("en-US"), "{0:c}", num); //$2.50
s3 = string.Format(new CultureInfo("fr-FR"), "{0:c}", num); //2,50 €
s4 = string.Format(new CultureInfo("it-IT"), "{0:c}", num); //€ 2,50
s5 = string.Format(new CultureInfo("de-DE"), "{0:c}", num); //2,50 €
s6 = string.Format("{0,-5:ddd}t{0:dddd}", dt); //周日 星期日
s7 = string.Format(new CultureInfo("en-US"), "{0,-5:ddd}t{0:dddd}", dt); //Sun Sunday
s8 = string.Format(new CultureInfo("fr-FR"), "{0,-5:ddd}t{0:dddd}", dt); //dim. dimanche
s9 = string.Format(new CultureInfo("it-IT"), "{0,-5:ddd}t{0:dddd}", dt); //dom domenica
s0 = string.Format(new CultureInfo("de-DE"), "{0,-5:ddd}t{0:dddd}", dt); //So Sonntag
string br = "n";
TextBox1.Text = string.Concat(s1, br, s2, br, s3, br, s4, br, s5, br, s6, br, s7, br, s8, br, s9, br, s0);
}
最后
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