C# IO讀寫文件方法封裝，

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：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：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;
        }

　　調用這兩個方法讀寫文件的調用方式我就不寫了