parser.parse_args()

This line of code is used to parse the command-line arguments. It uses the argparse module in Python to define the arguments that the program expects to receive and to parse them. The arguments are defined using the add_argument() method, and the parse_args() method is then called to extract the values of the arguments from the command line. The parsed arguments are returned as an object that can be used to access the values of the arguments.

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parser.parse_args

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args = parser.parse_args()

这行代码通常用于解析命令行参数。它使用 argparse 模块来定义命令行参数，并将它们解析为 Python 对象。这样我们就可以在脚本中使用这些参数来控制程序的行为。在这行代码之前，通常会定义 argparse.ArgumentParser 对象，并使用 add_argument() 方法来定义每个参数。然后，调用 parse_args() 方法来解析命令行参数，并将它们存储在 args 对象中。