写python3脚本读入参数中的文件进行以下运算C#代码用python改写public static byte AssetBundleSimpleDecryptbyte bytes if bytes0 == 69 && bytes1 == 65 && bytes2 == 66 short num = BitConverterToInt16bytes 4; byte b = byte

以下是Python3脚本的实现：

import sys
import struct

def asset_bundle_simple_decrypt(file_path):
    with open(file_path, "rb") as f:
        bytes = f.read()

    if bytes[0] == 69 and bytes[1] == 65 and bytes[2] == 66:
        num = struct.unpack("<h", bytes[4:6])[0]
        b = bytes[6]
        for i in range(num-1, 96, -1):
            bytes[i] ^= bytes[i-1]
        bytes[96] = (bytes[96] ^ b)
        bytes[0:8] = b"UnityFS\x00"

    with open(file_path[:-3] + "out", "wb") as f:
        f.write(bytes)

if __name__ == "__main__":
    if len(sys.argv) != 2:
        print("Usage: python3 script.py [file_path]")
        sys.exit(1)

    asset_bundle_simple_decrypt(sys.argv[1])

运行方式：

python3 script.py [file_path]

其中，[file_path]是需要解密的文件路径。解密后的文件会保存在同目录下，文件名为原文件名加上".out"后缀。