c#如何将字节数组转换成数字？

// Create a decimal from a byte array
public static decimal ByteArrayToDecimal (byte[] src) {
// Create a MemoryStream containing the byte array
using (MemoryStream stream = new MemoryStream(src)) {
// Create a BinaryReader to read the decimal from the stream
using (BinaryReader reader = new BinaryReader(stream)) {
   // Read and return the decimal from the
   // BinaryReader/MemoryStream
   return reader.ReadDecimal();
  }
 }
}