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argparser's Introduction

ArgParser - 命令行参数解析器

编写ArgParser的原因是python自带的getopt模块中,当指定p:模式串时如果-p参数不存在则会报异常, 这样就无法指定可选参数。ArgParser指定的所有参数都是可选的, 即当参数项不存在时不会报错

  • 使用方法
    # 第二个参数为getopt风格的模式串
    parser = ArgParser(sys.argv[1:], 'p:t:')
    result = parser.parse()
    # result是一个元组列表, 每个元组的第一个元素为参数名,第二个元素为参数值

    # 对于 script.py -p 8080 -t 10
    # result为 [('-p', '8080'), ('-t', '10')]
    # 如果缺少参数值,扔ArgParserException

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