C#字节数组汇编

Question

我希望能够组装/分解字节数据，如以下伪代码所示

//Step one, how do I WriteInt, WriteDouble, WritString, etc to a list of bytes?
List<byte> mybytes = new List<byte>();
BufferOfSomeSort bytes = DoSomethingMagical(mybytes);
bytes.WriteInt(100);
bytes.WriteInt(120);
bytes.WriteString("Hello");
bytes.WriteDouble("3.1459");
bytes.WriteInt(400);


byte[] newbytes = TotallyConvertListOfBytesToBytes(mybytes);


//Step two, how do I READ in the same manner?
BufferOfAnotherSort newbytes = DoSomethingMagicalInReverse(newbytes);
int a = newbytes.ReadInt();//Should be 100
int b = newbytes.ReadInt();//Should be 120
string c = newbytes.ReadString();//Should be Hello
double d = newbytes.ReadDouble();//Should be pi (3.1459 or so)
int e = newbytes.ReadInt();//Should be 400

Answer 1

我会在这里使用 BinaryReader/BinaryWriter。

// MemoryStream can also take a byte array as parameter for the constructor
MemoryStream ms = new MemoryStream();
BinaryWriter writer = new BinaryWriter(ms);

writer.Write(45);
writer.Write(false);

ms.Seek(0, SeekOrigin.Begin);

BinaryReader reader = new BinaryReader(ms);
int myInt = reader.ReadInt32();
bool myBool = reader.ReadBoolean();

// You can export the memory stream to a byte array if you want
byte[] byteArray = ms.ToArray();