C# IO讀寫文件方法封裝

　　代碼 1：

        /// <summary>        /// 功能：FileStream文件流讀取文件        /// </summary>        /// <param name="filePath">參數(shù)：文件路徑</param>        /// <returns>返回值：StreamReader對象</returns>        public static StreamReader ReadFileByFs(string filePath)        {            FileStream Fs = null;            StreamReader Sr = null;            try            {                Fs = new FileStream(filePath, FileMode.OpenOrCreate, Fileaccess.Read);                Sr = new StreamReader(Fs, Encoding.Default);            }            catch (IOException e)            {                throw e;            }            return Sr;        }

　　代碼 2：

       /// <summary>        /// 功能：FileStream文件流寫文件        /// </summary>        /// <param name="filePath">參數(shù)：文件路徑</param>        /// <returns>返回值：StreamWriter對象</returns>        public static StreamWriter WriteFileByFs(string filePath)        {            FileStream Fs = null;            StreamWriter Sw = null;            try            {                Fs = new FileStream(filePath, FileMode.OpenOrCreate, FileAccess.Write);                Sw = new StreamWriter(Fs, Encoding.Default);            }            catch (IOException e)            {                throw e;            }            return Sw;        }

　　調(diào)用這兩個方法讀寫文件的調(diào)用方式我就不寫了