C# 中将数值型数据转换为字节数组的方法
private void Value_ByteArray()
{
double doublevalue = 258.0;
Int32 intvalue = 258;
string strValue = "258";
Int16 int16value = 258;
MemoryStream doublemem = new MemoryStream();
BinaryWriter doublebyteWR = new BinaryWriter(doublemem);
doublebyteWR.Write(doublevalue);
//doublemem.Close();
BinaryReader doubleReader = new BinaryReader(doublemem);
doublemem.Seek(0, SeekOrigin.Begin);
double heh = doubleReader.ReadDouble();//heh确实是257.0
MemoryStream intmem = new MemoryStream();
BinaryWriter intbyteWR = new BinaryWriter(intmem);
intbyteWR.Write(intvalue);
MemoryStream strmem = new MemoryStream();
BinaryWriter strbyteWR = new BinaryWriter(strmem);
strbyteWR.Write(strValue);
MemoryStream int16mem = new MemoryStream();
BinaryWriter int16byteWR = new BinaryWriter(int16mem);
int16byteWR.Write(int16value);
byte[] bufferdouble = doublemem.ToArray();
byte[] bufferint = intmem.ToArray();
byte[] bufferint16 = int16mem.ToArray();
byte[] bufferstr = strmem.ToArray();
}
程序结果：
double =258.0 ;8位——0 0 0 0 0 32 112 64 字节数组
Int32 = 258 ; 4——2 1 0 0
string ="258" ; 4——3 50 53 55
Int16 = 258 ; 2——2 1
Int16[] ={0,258,1} ;0 0 2 1 1 0
通过上面的例子，可以看出由数值型转换为字节数组后，程序是倒序读入的，但是读取的时候，VS会自动反转过来
Int16[] int16Array =new Int16[3]{0,258,1} ;
MemoryStream int16mem = new MemoryStream();
BinaryWriter int16byteWR = new BinaryWriter(int16mem);
foreach (Int16 hehe in int16Array)
{
int16byteWR.Write(hehe);
}
byte[] bufferint16 = int16mem.ToArray();//0 0 2 1 1 0
BinaryReader int16Reader = new BinaryReader(int16mem);
int16mem.Seek(0, SeekOrigin.Begin);
Int16[] int16Arraynew=new Int16[3];
for (int i = 0; i < int16mem.Length/2; i ++)
{
int16Arraynew[i] = int16Reader.ReadInt16();//[0,258,1]
}
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