asp.net中讀寫檔案實現代碼

寫入分為續寫和覆蓋 只需改變第一個參數的值就可切換

代碼如下:

  

代碼如下

複製代碼

/// <summary>         /// 內容寫入到文字檔         /// </summary>         /// <param name="count">狀態,判斷是續寫還是覆蓋</param>         /// <param name="fileName">檔案名稱</param>         /// <param name="content">內容</param>         /// <returns>返回錯誤資訊或時1代表寫入成功</returns>         public static  string writeFile(bool bl,string fileName, string content)         {             try             {                 string pathName = System.Web.HttpContext.Current.Server.MapPath(fileName);                 //這個不存在會自動建立                 using (StreamWriter sw = new StreamWriter(pathName, bl, Encoding.Default))                 {                     sw.Write(content);                     sw.Flush();                     sw.Close();                 }             }             catch (Exception ex)             {                 return ex.Message;             }             return "1";         }         /// <summary>         /// 讀取文字檔內容         /// </summary>         /// <param name="fileName">檔案名稱</param>         /// <returns>返回內容</returns>         public static  string readFile(string fileName)         {             string result = "";             try             {                 string pathName = System.Web.HttpContext.Current.Server.MapPath(fileName);                 using (StreamReader sr = new StreamReader(pathName, Encoding.Default))                 {                     result = sr.ReadToEnd();                     sr.Close();                 }             }             catch (Exception ex)             {                 return "0";//ex.Message;             }             return result;         }