1、問題描述
crc32校驗之後,是個int型的數據,怎麼將數據填入一個char型的buff中,
int crc32;
char buff[4];
buff[0] = (crc32>>24) & (0x000000ff);
buff[1] = (crc32>>16) & (0x000000ff);
buff[2] = (crc32>>8) & (0x000000ff);
buff[3] = (crc32>>0) & (0x000000ff);
int類型佔有4個字節,共有32位,所以對位進行操作的時候,注意位數的多少。