int转换为16进制 byte

代码：
byte[] aa = new byte[8];
aa = IntToByteArray2(101);

public byte[] IntToByteArray2(int value)
{
byte[] src = new byte[4];
src[0] = (byte)((value >> 24) & 0xFF);
src[1] = (byte)((value >> 16) & 0xFF);
src[2] = (byte)((value >> 8) & 0xFF);
src[3] = (byte)(value & 0xFF);
return src;
}

转换后的src 显示
[0]
[0]
[0]
[101]

这是为什么，

我稍微改了一下

#include <iostream>
using namespace std;
byte *IntToByteArray2(int value)
{
    byte *src = new byte[4];
    src[0] = (byte)((value >> 24) & 0xFF);
    src[1] = (byte)((value >> 16) & 0xFF);
    src[2] = (byte)((value >> 8) & 0xFF);
    src[3] = (byte)(value & 0xFF);
    return src;
}
int main(int argc, char const *argv[])
{
    byte *aa = new byte[8];
    aa = IntToByteArray2(101);
    for (int i = 0; i < 4; i++)
    {
        cout << hex << int(aa[i]);
    }
}