将字节转换为数字C＃

Question

How can I convert a byte to a number in C#? For example, 00000001 to 1, 00000011 to 3, 00001011 to 11. i have a byte array with numbers encoded as binary bytes, but I need to get those numbers and append them to a string.

Answer 1

You can do this.

// If the system architecture is little-endian (that is, little end first),
// reverse the byte array.
if (BitConverter.IsLittleEndian)
   Array.Reverse(bytes);
int i = BitConverter.ToInt32(bytes, 0);

where bytes is your bytes[]. You would want to take a look here

Answer 2

In C# byte is already an unsigned number ranging from 0 to 255 . You can freely assign them to integers, or convert to other numeric types.

Answer 3

Bytes are numbers.

If you want to get the numeric value of a single byte , just call ToString() .

If you have an array of bytes that are part of a little-endian single number, you can use the BitConverter class to convert them to a 16, 32, or 64 bit signed or unsigned integer.

Answer 4

you can use built-in Convert

foreach (byte b in array) {
    long dec = Convert.ToInt64(b,2);
}