String和Byte[]的转换

int i = 0;
           Encoding enc = Encoding.ASCII;
           string myString = "abcd";
           byte[] myBytes = new byte[myString.Length];
           foreach (char item in myString.ToCharArray())
           {
               myBytes[i] = (byte)item;
               i++;
           }
           myString = enc.GetString(myBytes);

           enc = Encoding.Unicode;
           myString = "入海口凭良心";
           byte[] data = enc.GetBytes(myString);
           myString = enc.GetString(data);