无法将命令行参数传递给有条件的自定义操作

import argparse

def main():
    # 创建 ArgumentParser 对象
    parser = argparse.ArgumentParser(description='Process some integers.')
    
    # 添加命令行参数
    parser.add_argument('--condition', type=str, help='A condition to determine the action')
    parser.add_argument('--value', type=int, help='A value to be used in the operation')
    
    # 解析命令行参数
    args = parser.parse_args()
    
    # 根据条件执行不同的操作
    if args.condition == 'add':
        result = args.value + 10
        print(f"Result of addition: {result}")
    elif args.condition == 'subtract':
        result = args.value - 10
        print(f"Result of subtraction: {result}")
    else:
        print("Unknown condition")

if __name__ == "__main__":
    main()

python script.py --condition add --value 5

Result of addition: 15