Neo戰略

############################  抓取目錄下檔案資訊 ###########################

private List<FileInfo> GetFiles()
    {
        List<FileInfo> lstFileInfo = new List<FileInfo>();
        string dir = Server.MapPath("~/images");
        FileInfo info;
        string[] files;
        files = Directory.GetFiles(dir);
        foreach (string item in files)
        {
            info = new FileInfo(item);
            lstFileInfo.Add(info);
        }
        return lstFileInfo;
    }

 

###########################     建立目錄   #######################################

     if (!Directory.Exists(Server.MapPath("~/abc/")))   //目錄中否存在
                Directory.CreateDirectory(Server.MapPath("~/abc/"));  //若不存在建立目錄

 

##########################     txt 文字檔應用    ####################################

//-----------讀取文字-------------

方式一、

using (StreamReader sr = new StreamReader("TestFile.txt"))
            {
                String line;
                while ((line = sr.ReadLine()) != null)
                {
                    Console.WriteLine(line);
                }
            }

方式二、

 using (StreamReader sr = File.OpenText(FILE_NAME))
        {
            String input;
            while ((input=sr.ReadLine())!=null)
            {
                Console.WriteLine(input);
            }
            Console.WriteLine ("The end of the stream has been reached.");
            sr.Close();
        }

方式三、

string[] readText = File.ReadAllLines(path);
 

//寫入文字
File.AppendAllText(File.AppendAllText("檔案路徑", "要寫入的內容");

 

##############################   資料串流  ###############################

using System.IO;

##############################  將上傳檔案轉為二進位建立儲存  #################

   ws_localhost.WebService ws = new ws_localhost.WebService();
            if (ws.UploadFile(this.FileUpload1.FileBytes, this.FileUpload1.FileName))
                 Page.ClientScript.RegisterStartupScript(this.GetType(), "jsMessage", "alert('檔案已上傳成功!');", true);
            else Page.ClientScript.RegisterStartupScript(this.GetType(), "jsMessage", "alert('上傳檔案失敗!');", true);

 public bool UploadFile(byte[] fs, string fileName)
     {
         try
         {
             MemoryStream memoryStream = new MemoryStream(fs);
             FileStream fileStream = new FileStream(Server.MapPath(@"~/wsDownFile/" + fileName), FileMode.Create);
             memoryStream.WriteTo(fileStream);
             memoryStream.Close();
             fileStream.Close();
             fileStream = null;
             memoryStream = null;
             return true;

         }

         catch (Exception ex)
         {
             return false;
         }
     }

##################################  利用streamWrtite 將文字寫入/檔案  / streamReader 讀取檔案      ##############

using (StreamWriter sw = File.CreateText(FILE_NAME))
        {
            sw.WriteLine ("This is my file.");
            sw.Close();
        }

 using (StreamReader r = File.OpenText("log.txt"))
        {
            while ((line=r.ReadLine())!=null)
            Console.WriteLine(line);
   
        }
 

 

##################################         ###########################################

 

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資料來源:http://msdn.microsoft.com/zh-tw/library/k3352a4t(v=VS.80).aspx