import argparse parser = argparse.ArgumentParser(description='Process some integers.') parser.add_argument('integers', metavar='N', type=int, nargs='+', help='an integer for the accumulator') parser.add_argument('--sum', dest='accumulate', action='store_const', const=sum, default=max, help='sum the integers (default: find the max)') args = parser.parse_args() print(args.accumulate(args.integers))

https://docs.python.org/3/library/argparse.html#argparse.ArgumentParser

初始化对象

class argparse.ArgumentParser(prog=None, usage=None, description=None, epilog=None, parents=[], formatter_class=argparse.HelpFormatter, prefix_chars='-', fromfile_prefix_chars=None, argument_default=None, conflict_handler='error', add_help=True, allow_abbrev=True) 参数描述progThe name of the program (default: sys.argv[0])usageThe string describing the program usage (default: generated from arguments added to parser)descriptionText to display before the argument help (default: none)epilogText to display after the argument help (default: none)parentsA list of ArgumentParser objects whose arguments should also be includedformatter_classA class for customizing the help outputprefix_charsThe set of characters that prefix optional arguments (default: ‘-‘)fromfile_prefix_charsThe set of characters that prefix files from which additional arguments should be read (default: None)argument_defaultThe global default value for arguments (default: None)conflict_handlerThe strategy for resolving conflicting optionals (usually unnecessary)add_helpAdd a -h/–help option to the parser (default: True)allow_abbrevAllows long options to be abbreviated if the abbreviation is unambiguous. (default: True)

对象方法

ArgumentParser.add_argument(name or flags...[, action][, nargs][, const][, default][, type][, choices][, required][, help][, metavar][, dest]) 参数描述name or flags一个name或者列表包含多个name, e.g. foo or -f, --foo.actionThe basic type of action to be taken when this argument is encountered at the command line.nargs设置参数的个数constA constant value required by some action and nargs selections.default参数的默认值type输入参数的类型choices参数的值只可以在这其中选取required参数是必须的,不能为空help(str) 参数的说明metavarA name for the argument in usage messages.dest默认使用name中-或者--后的,也可以通过dest来指定

https://www.cnblogs.com/shmily2018/p/11592448.html https://blog.csdn.net/the_time_runner/article/details/97941409