在python中，如何通过sys.argv将变量值按名称传递到main？

import argparse

def main():
    parser = argparse.ArgumentParser(description='Process some integers.')
    parser.add_argument('--var_name', type=str, help='The name of the variable')
    parser.add_argument('--var_value', type=str, help='The value of the variable')

    args = parser.parse_args()

    # 使用变量名和值
    print(f"Variable name: {args.var_name}, Variable value: {args.var_value}")

if __name__ == "__main__":
    main()

python script.py --var_name my_var --var_value my_value

pip install click

import click

@click.command()
@click.option('--var_name', type=str, help='The name of the variable')
@click.option('--var_value', type=str, help='The value of the variable')
def main(var_name, var_value):
    # 使用变量名和值
    print(f"Variable name: {var_name}, Variable value: {var_value}")

if __name__ == "__main__":
    main()