C#txt文件创建并写入信息

 

 

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public static void LogWrite(string str) {<br>          //项目根目录   string path = HttpContext.Current.Server.MapPath("~") + "ilogs.txt";          if (!File.Exists(path))     {         FileStream fs = new FileStream(path, FileMode.Create,FileAccess.ReadWrite);           StreamWriter sw = new StreamWriter(fs);         sw.Write(str);         sw.Flush();         sw.Close();     }     else     {         FileStream fs = new FileStream(path, FileMode.Append);         //文本写入         StreamWriter sw = new StreamWriter(fs);         sw.Write(str);         sw.Flush();         sw.Close();     } }