SqlDataReader

------解决方案--------------------
 byte[] newBytes = new byte[二进制数组的Length];

           int j = 0;

           for (int k = 0; k < strBytes.Length; )
           {
               string a = strBytes.Substring(k, 8);

               newBytes[j] = Convert.ToByte(a, 2);

               k = k + 8;

               j++;
           }
           string b = Encoding.Default.GetString(newBytes);
以上是二进制转换为字符串的代码。供参考。。。

------解决方案--------------------
C# code
byte[] bsfloat =...;
System.IntPtr ptr =Marshal.UnsafeAddrOfPinnedArrayElement(bsfloat,0);
float f = (float)Marshal.PtrToStructure( ptr ,typeof(float));

------解决方案--------------------
C# code
BitConverter.ToSingle(bytes,0);