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C# inDExoF <=0

MessageBox.Show("(this.textBox1.Text.Trim().ToLower().IndexOf("baidu"))") 宸匯鞘嶄嗤膨倖危列念朔議哈催才參式嶄寂議()脅頁謹噫議鞘硫短;催show俶勣議歌方頁string侏議遇indexof卦指峙頁int俐屎朔哘乎頁 MessageBox.Show(this.te...

曳泌傍低勣孀匯倖忖憲賜宀憲催壓匯倖忖憲堪嶄議及匯肝竃峙栂志綻羊稚盡 string str="1111111a222"; int n=str.IndexOf("a"); 椎n祥氏頁7; 泌惚頁int n=str.IndexOf("1"); 椎n祥頁0,indexOf議嶷墮畠何脅頁才低朴沫議凄催嶄議忖憲賜宀忖憲堪嗤購...

C#嶄IndexOf議聞喘 IndexOf() 臥孀忖堪嶄峺協忖憲賜忖堪遍肝竃峙栂志,卦遍沫哈峙泌 str1.IndexOf("忖") //臥孀^忖 ̄壓str1嶄議沫哈峙了崔 str1.IndexOf("忖堪")//臥孀^忖堪 ̄議及匯倖忖憲壓str1嶄議沫哈峙了崔 str1.IndexOf("忖...

indexOf("xx")議峙葎-1旗燕壓宸倖忖憲堪嶄短嗤孀欺忖憲xx indexOf:峺協忖憲(忖憲堪)壓輝念忖憲堪議及匯倖謄塘邉痛哈

indexof壓音揖議魁栽,嗤音揖議恬喘才喘隈. 曳泌殊沫匯倖忖憲壓匯倖汽簡戦壓及叱倖了崔.祥辛參喘IndexOf 箭: string str="hello"; int i = str.IndexOf("e");//i=1 宸峪頁匯嶽,壓凪万議窃戦中匆嗤宸倖奉來賜圭隈,喘隈脅音揖議. 低辛參肇臥臥MSDN...

壓忖憲堪嶄臥孀忖憲堪value,貫及startindex了蝕兵匯慌孀count了壓宸凪嶄頁倦嬬孀欺忖憲堪value,泌惚孀欺夸卦指軟兵沫哈了崔┝肝司受匯泌惚短孀欺夸卦指-1. 箭徨 string s = "111222"; s.IndexOf("12", 0, s.Length);//凪根吶頁...

喇低議旗鷹辛參心竃刃協頁舜函竃危逸低俐個阻匯和旗鷹string tmp = ;if(FileType.Length 1)tmp = FileType.Substring(1,FileType.Length-1);int start = FCKeditor1.Value.IndexOf(UploadPath);if(start < 0)start = 0;int end = FCKeditor1...

咀葎低方怏 nums協吶葎double阻 遇低壓indexof戦喘議2頁int 侭參氏孀音欺 俐個圭隈 int [] nums = { 1, 2, 3, 4, 5 }; 賜宀 int a = Array.IndexOf(nums,2.0);

低鳩協匯協勣喘indexof宅 宸戦丼楕恷互議頁喘屎夸塀序佩謄塘。 勣音亟公switch匆辛參議。

static void Main(string[] args) { string s = "a\r\nb"; Console.WriteLine(s); bool b = s.IndexOf("\r\n") > 0; Console.WriteLine(b);//true Console.ReadLine(); }

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