C#int类型转Byte[]

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方法1：使用左移和右移

int转化为byte[]:

public byte[] intToBytes(int value)

{

byte[] src = new byte[4];

src[3] = (byte)((value >> 24) & 0xFF);

src[2] = (byte)((value >> 16) & 0xFF);

src[1] = (byte)((value >> 8) & 0xFF);//高8位

src[0] = (byte)(value & 0xFF);//低位

return src;

}

byte[]转化为int:

public int bytesToInt(byte[] src, int offset)

{

int value;

value = (int)((src[offset] & 0xFF)

| ((src[offset + 1] & 0xFF) << 8)

| ((src[offset + 2] & 0xFF) << 16)

| ((src[offset + 3] & 0xFF) << 24));

return value;

}

方法2：使用BitConverter

int转化为byte[]:

public byte[] IntToBitConverter(int num)

{

byte[] bytes = BitConverter.GetBytes(num);

return bytes;

}

byte[]转化为int:

public int IntToBitConverter(byte[] bytes)

{

int temp = BitConverter.ToInt32(bytes, 0);

return temp;

}