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理解这个程序

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理解这个程序

请问在下面的程序中我应该在哪里说明转储文件和密钥文件的文件路径？

#!/usr/bin/python3

import binascii, os, argparse

def writeToFile(key, key_file):
    with open(key_file, "a") as f:
 UIOP       f.write(key + "\n")

def getKeys(dump, key_file):
    dump = dump.decode('utf-8')

    zone = 0
    pos  = 0

    while zone <= 128 * 15:
        for l in range(0 + zone, 128 + zone):
            pos += 1

            if pos == 97:
                print("Key A: " + "".join(dump[l:l + 12]))
                writeToFile("".join(dump[l:l + 12]), key_file)
            elif pos == 117:
                print("Key B: " + "".join(dump[l:l + 12]))
                writeToFile("".join(dump[l:l + 12]), key_file)

        pos  = 0
        zone = zone + 128

def parse_args():
    arg_parser = argparse.ArgumentParser(description="""
A simple tool to extract keys from Mifare Classic 1K dump files.
""",formatter_class=argparse.RawDescriptionHelpFormatter)
    arg_parser.add_argument('-i', '--input', help='Mifare 1K dump input file')
    arg_parser.add_argument('-o', '--output', help='Key output file')
    args = arg_parser.parse_args()

    return args

def run(args):
    if os.path.isfile(args.input):
        with open(args.input, "rb") as f:
            getKeys(binascii.hexlify(f.read()), args.output)

def main():
    run(parse_args())

if __name__ == "__main__":
    main()

答案1

该脚本的编写方式key_file是转储文件。

您的命令语法是$ command -i /path/to/infile -o /path/to/dumpfile

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