【C#】bin文件、任意类型文件操作汇总

一、bin文件

1、读写

 /// <summary>
        /// 加载任意二进制文件
        /// </summary>
        public static bool LoadBinaryFile(ref WaveData_Class testObj, string Fliepath)
        {
            bool res = false;
            try
            {
                FileStream load_read = File.Open(Fliepath, FileMode.Open, FileAccess.Read, FileShare.None);
                BinaryFormatter bf = new BinaryFormatter();
                testObj = bf.Deserialize(load_read) as WaveData_Class;
                load_read.Close();
                res = true;
            }
            catch (System.Exception ex)
            {
                res = false;
                MessageBox.Show(ex.ToString());
            }
            return res;
        }

        /// <summary>
        /// 存储任意二进制文件文件
        /// </summary>
        public static bool BinaryFileSave(WaveData_Class testObj, string Fliepath)
        {

            bool res = false;
            try
            {
                FileStream save_write;
                save_write = File.Open(Fliepath, System.IO.FileMode.OpenOrCreate);
                BinaryFormatter bf = new BinaryFormatter();
                bf.Serialize(save_write, testObj);
                save_write.Close();
                res = true;
            }
            catch (System.Exception ex)
            {
                res = false;
                MessageBox.Show(ex.ToString(), "ERROR", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
            return res;
        }

二、任意类型文件

1、读写

string sAllTVData = "";   //要写入文件里的内容变量
                FileStream fs = new FileStream("D://tempdata.txt", FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite);  //创建文件对象
                StreamReader reader = new StreamReader(fs, System.Text.Encoding.UTF8);   //创建文件读取流对象
                string s_TVinfo = "";
                while ((s_TVinfo = reader.ReadLine()) != null)   //实际工作中对写入文件的内容处理，我遇到的是把文件里的内容读出来，然后结合当前手里的数据进行分析处理，然后重新写入文件里，当然不需要这种需求，就只单纯打开文件，写入文件就行了
                {
                    //sAllTVData = sAllTVData + s_TVinfo +"\n";
                    //sTVDataSum++;
                }
                string data = "sn=" + _uScanCode + "&workOrderCode=" + sWorkOrderCode + "&lanMac=" + _sRecieveLanMac + "&wifiMac=" + _sRecieveWifiMac + "&btMac=" + _sRecieveBtMac + "&testUserName=" + sTestUser + "&testDateTime=" + sTimeStr;
                sAllTVData = data;
                StreamWriter writer = new StreamWriter(fs, System.Text.Encoding.UTF8);   //创建写入文件流对象，指定文件对象和编码字符集
                writer.Write(sAllTVData);   //将内容写入文件，默认是覆盖
                writer.Write(System.Environment.NewLine);  //给写入文件内容后添加换行
                //关闭所有打开的文件流对象
                writer.Close();
                reader.Close();
                fs.Close();

或：

public void TestWrite()
        {
            string FileName = AppDomain.CurrentDomain.SetupInformation.ApplicationBase + "\\" + DateTime.Now.ToString("yyyy-MM-dd HH-mm-ss") + ".data";

           FileStream DataFile = File.Open(FileName, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite);

            int num = 1000;
            byte[] writebuff = new byte[num];
            for (int h = 0; h < num; h++)
            {
                writebuff[h] = (byte)(h + 1);
            }
            DataFile.Seek(DataFile.Length, SeekOrigin.Begin);
            DataFile.Write(writebuff, 0, num);
            DataFile.Flush();
        }

        public string TestLoad(string path)
        {
            int length = 0;
            string str = "";
            try
            {
                FileStream fs = File.Open(path, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite);
                length = (int)fs.Length;
                byte[] readbuf = new byte[length];
                fs.Seek(0, SeekOrigin.Begin);
                fs.Read(readbuf, 0, length);
                for (int i = 0; i < length; i++)
                {
                    str += readbuf[i].ToString() + "  ";
                }
                fs.Close();
                return str;
            }
            catch
            {
                return null;
            }
        }