/usr/bin/python3importsysprint('Number of arguments:', len(sys.argv),'arguments.')print('Argument List:', str(sys.argv)) 现在运行上面的脚本,这将产生以下结果 - F:\>python F:\worksp\python\command_line_arguments.py Number of arguments:1arguments. Argument List: ['F:\\worksp\\python\...
Python 提供了getopt模块来获取命令行参数。 $ python test.py arg1 arg2 arg3 Python 中也可以使用sys的sys.argv来获取命令行参数: sys.argv 是命令行参数列表。 len(sys.argv) 是命令行参数个数。 注:sys.argv[0] 表示脚本名。 实例 test.py 文件代码如下: 实例 #!/usr/bin/python # -*- coding: ...
Python argparse module is the preferred way to parse command line arguments. It provides a lot of option such as positional arguments, default value for arguments, help message, specifying data type of argument etc. At the very simplest form, we can use it like below. import argparse parser ...
number_of_arguments)print("The first command line argument is:",sys.argv[1])print("The second command line argument is:",sys.argv[2])print("The third command line argument is:",
action - The basic type of action to be taken when this argument is encountered at the command line. nargs - The number of command-line arguments that should be consumed. const - A constant value required by some action and nargs selections. ...
# import the necessary packages import argparse # construct the argument parse and parse the arguments ap = argparse.ArgumentParser() ap.add_argument("-n", "--name", required=True, help="name of the user") args = vars(ap.parse_args()) # display a friendly message to the user print(...
Thenargsspecifies the number of command-line arguments that should be consumed. charseq.py #!/usr/bin/python import argparse import sys # nargs sets the required number of argument values # metavar gives name to argument values in error and help output ...
necessaryimplicit(local to the script)modules.Will include/process all files givenasarguments to pyminifier.py on the command line.-O,--obfuscate Obfuscate allfunction/method names,variables,and classes.Default is toNOTobfuscate.--obfuscate-classes Obfuscateclassnames.--obfuscate-functions ...
# This program adds up integers that have been passedasargumentsinthe command lineimportsystry:total=sum(int(arg)forarginsys.argv[1:])print('sum =',total)except ValueError:print('Please supply integer arguments') 为什么只有7行呢,因为第8行在命令行中输入: ...
optional arguments: -h, --help show this help message and exit -n N Please enter a number -a A Please enter operation C:\Users\Administrator\Desktop\python3\day3> 输入错误的字符查看,比如-n是int,我这里输入字符串 C:\Users\Administrator\Desktop\python3\day3>python ArgparsePractice.py -n sd...