一、List<byte>和byte[] 转换
方法1:
1Byte[] bytes; // 复制源 2 3List<Byte> lbyte = new List<Byte>; // 复制目的
方法2:
1// 迭代 bytes 数组中的内容后添加到 lbyte 中 2foreach( byte b in bytes) 3{ 4 lbyte.Add(b); 5}
方法3:
1byte[] data = GetMyData(); //你的数据 2List<byte> result = data.ToList(); 3//如果是2.0 4//List<byte> result = new List<byte>(data);
二、string类型转成byte[]
byte[] byteArray = System.Text.Encoding.Default.GetBytes ( str );
反过来,byte[]转成string:
string str = System.Text.Encoding.Default.GetString ( byteArray );
其它编码方式的,如System.Text.UTF8Encoding,System.Text.UnicodeEncoding class等;例如:
string类型转成ASCII byte[]:("01" 转成 byte[] = new byte[]{ 0x30, 0x31})
byte[] byteArray = System.Text.Encoding.ASCII.GetBytes ( str );
ASCII byte[] 转成string:(byte[] = new byte[]{ 0x30, 0x31} 转成 "01")
string str = System.Text.Encoding.ASCII.GetString ( byteArray );
有时候还有这样一些需求:
byte[] 转成原16进制格式的string,例如0xae00cf, 转换成 "ae00cf";new byte[]{ 0x30, 0x31}转成"3031":
1 public static string ToHexString ( byte[] bytes ) // 0xae00cf => "AE00CF " 2 { 3 string hexString = string.Empty; 4 if ( bytes != null ) 5 { 6 StringBuilder strB = new StringBuilder (); 7 for ( int i = 0; i < bytes.Length; i++ ) 8 { 9 strB.Append ( bytes[i].ToString ( "X2" ) ); 10 } 11 hexString = strB.ToString (); 12 } 13 return hexString; 14 }
反过来,16进制格式的string 转成byte[],例如, "ae00cf"转换成0xae00cf,长度缩减一半;"3031" 转成new byte[]{ 0x30, 0x31}:
1 public static byte[] GetBytes(string hexString, out int discarded) 2 { 3 discarded = 0; 4 string newString = ""; 5 char c; 6 // remove all none A-F, 0-9, characters 7 for (int i=0; i<hexString.Length; i++) 8 { 9 c = hexString[i]; 10 if (IsHexDigit(c)) 11 newString += c; 12 else 13 discarded++; 14 } 15 // if odd number of characters, discard last character 16 if (newString.Length % 2 != 0) 17 { 18 discarded++; 19 newString = newString.Substring(0, newString.Length-1); 20 } 21 int byteLength = newString.Length / 2; 22 byte[] bytes = new byte[byteLength]; 23 string hex; 24 int j = 0; 25 for (int i=0; i<bytes.Length; i++) 26 { 27 hex = new String(new Char[] {newString[j], newString[j+1]}); 28 bytes[i] = HexToByte(hex); 29 j = j+2; 30 } 31 return bytes; 32 } 33 34 private static byte HexToByte(string hex) 35 { 36 byte tt = byte.Parse(hex, System.Globalization.NumberStyles.HexNumber); 37 return tt; 38 } 39 40 private static byte HexToByte(string hex) 41 { 42 byte tt = byte.Parse(hex, System.Globalization.NumberStyles.HexNumber); 43 return tt; 44 }