Common decoding methods of C # byte array

In some cases, such as serial communication or reading binary files, unobstructed will get a byte array in the form of data.

However, for this data processing is often distressing, because in general communication situations, not a byte represents a character or some data, but the data is mixed between bytes and byte.

Read the file to get the situation:

New FileInfo (@ "E:\ABC. DAT"); long len =new FileStream (@ "E:\ABC. DAT", FileMode.Open); byte New byte  0, (int) len); fs. Close ();

1: Converts a byte to a 16-binary character representation

);   // 16 binary ()). PadLeft (2'0'"";   // converted to 2-character-length (insufficient left-side complement 0)

Conversion of 2:ASCII encoded storage (4 to 17 of byte array buffer is an ASCII character stored time)

stringStr_stime = Encoding.ASCII.GetString (buffer,4, -); DateTime stime=NewDateTime (Int32.Parse (str_stime. Substring (0,4) ), Int32.Parse (Str_stime. Substring (4,2) ), Int32.Parse (Str_stime. Substring (6,2) ), Int32.Parse (Str_stime. Substring (8,2) ), Int32.Parse (Str_stime. Substring (Ten,2) ), Int32.Parse (Str_stime. Substring ( A,2) ), Int32.Parse (Str_stime. Substring ( -,3)));

3: If a data is stored between bytes

such as 2 bytes of 0000|0000| | 0000|0000

BYTE 0 byte 1

The first 5 bits of the two bytes represent a data, and 6 bits represent a data, and the last 5 bits represent a data

Because int is 32-bit data in C #, you can store 4 bytes of data, Int16 can represent 2 bytes, and then handle it by shifting and bitwise operations.

　　

Int16 iData = buffer[1] + (buffer[080x1F50x3F one by one0x1F;  

If there is any mistake, please advise.

Common decoding methods of C # byte array