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string和byte[]互转

string转byte[]

byte[] byteArray = System.Text.Encoding.Default.GetBytes(str);

byte[] 转string

string str = System.Text.Encoding.Default.GetString(byteArray);

16 进制字符串与string互转

字符串转16进制字节数组

输入字符串"0011AACCBB"   输出 字节数组0x00,0x11,0xAA,0xCC,0xBB

//参数："0011AACCBB"   return  字节数组0x00,0x11,0xAA,0xCC,0xBBpublic static byte[] strToToHexByte(string hexString){    hexString = hexString.Replace(" ", "");    if ((hexString.Length % 2) != 0)        hexString += " ";    byte[] returnBytes = new byte[hexString.Length / 2];    for (int i = 0; i < returnBytes.Length; i++)        returnBytes[i] = Convert.ToByte(hexString.Substring(i * 2, 2), 16);    return returnBytes;}

字符串转16进制字节数组(带分隔符)

输入字符串"00 11 AA CC BB"   输出字节数组0x00,0x11,0xAA,0xCC,0xBB

//参数："00 11 AA CC BB"    return  字节数组0x00,0x11,0xAA,0xCC,0xBBpublic static byte[] strToHexByteSplit(string hexString){    return hexString.Split(' ').Select(temp => "0x" + temp).Select(temp => (byte)Convert.ToInt32(temp, 16)).ToArray();}

16进制字节数组转字符串（可加分隔符）

输入字节数组0x00,0x11,0xAA,0xCC,0xBB   输出字符串0011AACCBB也可带分隔符

//参数：字节数组0x00,0x11,0xAA,0xCC,0xBB   return 0011AACCBB也可带分隔符public static string HexToStr(byte[] hexbyte){    return  BitConverter.ToString(hexbyte).Replace("-","");}

16进制字符串转字符串RFID里常用

public static string HexToStr(string mHex){    mHex = mHex.Replace(" ", "");    if (mHex.Length <= 0) return "";    byte[] vBytes = new byte[mHex.Length / 2];    for (int i = 0; i < mHex.Length; i += 2)        if (!byte.TryParse(mHex.Substring(i, 2), NumberStyles.HexNumber, null, out vBytes[i / 2]))            vBytes[i / 2] = 0;    return ASCIIEncoding.Default.GetString(vBytes);}

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