parser= argparse.ArgumentParser(description='Test command line arguments') parser.add_argument('-n','--num', type=int, nargs='+', metavar='', required=True, help='a string of numbers') args=parser.parse_args()print(args.num) 运行如下: $ python cmd3.py -n 1 2 3 4 5 6 7 8 [...
help='你的名字')parser.add_argument('-v', '--verbose', action='store_true', help='显示详细信息')parser.add_argument('--age', type=int, default=18, help='你的年龄 (默认为18岁)') # 设置默认值args = parser.parse_args()name = args.nameif args.verbose: print(...
parser.parse_args() Below is the output from quick run of above script. Python argparse module provide a lot many features, you should read about them atpython argparsetutorial for clear understanding. That’s all for different options to read and parse command line arguments in python, you s...
args = parser.parse_args() print(f"第 1 個引數:{args.arg1:^10},type={type(args.arg1)}") print(f"第 2 個引數:{args.arg2:^10},type={type(args.arg2)}") print(f"第 3 個引數:{args.arg3:^10},type={type(args.arg3)}") 設置位置引數後,(在你進一步設定 nargs 參數以前)如果...
command1_parser.add_argument("arg1", type=int, help="Argument 1 for command 1")使用add_argument()方法添加一个选项，传入选项的名称、类型和帮助信息。6、定义命令处理程序：为每个命令定义一个处理程序函数，该函数将执行与命令相关的操作。defcommand1_handler(args): print(f"Executing command1 with ...
print(args.index) 每多一个参数,代码中就会多一行parser.add_argument,手写每个参数的配置时会很繁琐,如名称需要加--,还有修改默认值,类型以及描述的时候很麻烦,最后也会导致自己的代码很冗长,维护不便。 就算用了更高级一点的Click,也需要不停的写option, 而且有几个option对应函数就要写几个输入参数与之匹配,写...
Argparse in Python is a built-in module used to parse command-line arguments. Here’s a simple example of how to use it: importargparse parser=argparse.ArgumentParser()parser.add_argument('--name')args=parser.parse_args()print(args.name)# Output:# Whatever value you passed in with --name...
CommandLineParser parser(argc, argv, keys); bool useCamera = parser.get<bool>("camera"); string file = parser.get<string>("file_name"); VideoCapture cap; bool update_bg_model = true; if( useCamera ) cap.open(0); else cap.open(file.c_str()); ...
add_argument('-o', dest='outfile', action='store', help='output file') parser.add_argument('--speed', dest='speed', action='store', choices={'slow','fast'}, default='slow', help='search speed') args = parser.parse_args() # Output the collected arguments print(args.filenames)...
parser.add_argument('-o', '--output', action='store_true', help="shows output") An argument is added withadd_argument. Theactionset tostore_truewill store the argument asTrue, if present. The help option gives argument help. args = parser.parse_args() ...