The prefix byte when converted to binary, will flag on and off whether the next 8 bytes is a literal or a pair.

当前置字节转换成二进制时，将表明接下来的八个字节是原封未动的，还是<长度，距离>配对。

youdao

I then extract the initialization vector (IV) into a byte array, block encrypt the clear data, and prefix the IV bytes to the encrypted data bytes.

随后我将初始向量(IV)抽取到字节数组，对明文数据进行块加密，并将iv字节置于加密的数据字节之前。

youdao

I then extract the initialization vector (IV) into a byte array, block encrypt the clear data, and prefix the IV bytes to the encrypted data bytes.

随后我将初始向量(IV)抽取到字节数组，对明文数据进行块加密，并将iv字节置于加密的数据字节之前。

youdao