C#字节数组(byte[])和字符串相互转换方式
作者:IT技术猿猴
这篇文章主要介绍了C#字节数组(byte[])和字符串相互转换方式,具有很好的参考价值,希望对大家有所帮助。如有错误或未考虑完全的地方,望不吝赐教
C#字节数组(byte[])和字符串相互转换
通过C#中的system.text.encoding获取字符串的编码可以有ASCII,DEFAULT,utf-8以及其他一些方式
对于英文而言这几种所获取的编码是没有太大区别的,而中文则大有不同,其中DEFAULT所采取的是GB2312
可以通过一下方式进行确认,程序运行后会发现bufOfGB和buf是相同的
string str = "hello,我的祖国"; byte[] bufOfGB = System.Text.Encoding.GetEncoding("gb2312").GetBytes(str); Array.ForEach(bufOfGB,m=>Console.WriteLine(m)); Console.WriteLine(System.Text.Encoding.Default); byte[] buf = System.Text.Encoding.Default.GetBytes(str); Array.ForEach(buf,m=>Console.WriteLine(m)); Console.WriteLine("-------------"); byte[] bufOfASCII = System.Text.Encoding.ASCII.GetBytes(str); Array.ForEach(bufOfASCII,m=>Console.WriteLine(m)); Console.WriteLine("-------------"); byte[] bufOfUTF = System.Text.Encoding.UTF8.GetBytes(str); Array.ForEach(bufOfUTF,m=>Console.WriteLine(m)); Console.WriteLine("-------------");
byte[] byteArray ={43,45,67,88,23,1f} string str = System.Text.Encoding.Default.GetString(byteArray);
C#字节数组向类型的转化
字节数组与图像
#region BytesToBmp【函数】将字节数组转化为图像 /// <summary> /// 【函数】将字节数组转化为图像 /// </summary> /// <param name="buffer"></param> /// <returns></returns> public static Image BytesToBmp(byte[] buffer) { MemoryStream ms = new MemoryStream(buffer); ms.Position = 0; Image img = Image.FromStream(ms); ms.Close(); return img; } #endregion #region BmpToBytes【函数】将图像转化为字节数组 /// <summary> /// 【函数】将图像转化为字节数组 /// </summary> /// <param name="Bit"></param> /// <returns></returns> public static byte[] BmpToBytes(Bitmap Bit) { byte[] back = null; MemoryStream ms = new MemoryStream(); Bit.Save(ms, System.Drawing.Imaging.ImageFormat.Png); back = ms.GetBuffer(); return back; } #endregion
字节数组与字符串
#region StringToBytes【函数】将字符串转化为字节组 /// <summary> /// 【函数】将字符串转化为字节组 /// </summary> /// <param name="str"></param> /// <returns></returns> public static byte[] StringToBytes(string str) { byte[] data = System.Text.Encoding.Default.GetBytes(str); } #endregion #region BytesToString【函数】将字节数组转化为字符串 /// <summary> /// 【函数】将字节数组转化为字符串 /// </summary> /// <param name="data"></param> /// <returns></returns> public static string BytesToString(byte[] data) { string str = System.Text.Encoding.Default.GetString(data); return str; } #endregion
字节数组与整数
#region BytesToInt【函数】byte数组转int数组 /// <summary> /// 【函数】byte数组转int数组 /// </summary> /// <param name="src">源byte数组</param> /// <param name="offset">起始位置</param> /// <returns></returns> public static int[] BytesToInt(byte[] src, int offset) { int[] values = new int[src.Length / 4]; for (int i = 0; i < src.Length / 4; i++) { int value = (int)((src[offset] & 0xFF) | ((src[offset + 1] & 0xFF) << 8) | ((src[offset + 2] & 0xFF) << 16) | ((src[offset + 3] & 0xFF) << 24)); values[i] = value; offset += 4; } return values; } #endregion #region IntToBytes【函数】int数组转byte数组 /// <summary> /// 【函数】int数组转byte数组 /// </summary> /// <param name="src">源int数组</param> /// <param name="offset">起始位置,一般为0</param> /// <returns>values</returns> public static byte[] IntToBytes(int[] src, int offset) { byte[] values = new byte[src.Length * 4]; for (int i = 0; i < src.Length; i++) { values[offset + 3] = (byte)((src[i] >> 24) & 0xFF); values[offset + 2] = (byte)((src[i] >> 16) & 0xFF); values[offset + 1] = (byte)((src[i] >> 8) & 0xFF); values[offset] = (byte)(src[i] & 0xFF); offset += 4; } return values; } #endregion
字节数组与Object
#region ObjectToBytes【函数】将一个object对象序列化,返回一个byte[] /// <summary> /// 【函数】将一个object对象序列化,返回一个byte[] /// </summary> /// <param name="obj">能序列化的对象</param> /// <returns></returns> public static byte[] ObjectToBytes(object obj) { using (MemoryStream ms = new MemoryStream()) { IFormatter formatter = new BinaryFormatter(); formatter.Serialize(ms, obj); return ms.GetBuffer(); } } #endregion #region BytesToObject【函数】将一个序列化后的byte[]数组还原 /// <summary> /// 【函数】将一个序列化后的byte[]数组还原 /// </summary> /// <param name="Bytes"></param> /// <returns></returns> public static object BytesToObject(byte[] Bytes) { using (MemoryStream ms = new MemoryStream(Bytes)) { IFormatter formatter = new BinaryFormatter(); return formatter.Deserialize(ms); } } #endregion
总结
以上为个人经验,希望能给大家一个参考,也希望大家多多支持脚本之家。