import argparse<\/p>\ndef greet(args):<\/p>\n
print(f"Hello, {args.name}! You are {args.age} years old.")<\/p>\n
def farewell(args):<\/p>\n
print(f"Goodbye, {args.name}! See you next time.")<\/p>\n
def main():<\/p>\n
parser = argparse.ArgumentParser(description="A script with subcommands")<\/p>\n
subparsers = parser.add_subparsers()<\/p>\n
greet_parser = subparsers.add_parser('greet', help='Greet someone')<\/p>\n
greet_parser.add_argument('name', type=str, help='Your name')<\/p>\n
greet_parser.add_argument('age', type=int, help='Your age')<\/p>\n
greet_parser.set_defaults(func=greet)<\/p>\n
farewell_parser = subparsers.add_parser('farewell', help='Bid farewell to someone')<\/p>\n
farewell_parser.add_argument('name', type=str, help='Your name')<\/p>\n
farewell_parser.set_defaults(func=farewell)<\/p>\n
args = parser.parse_args()<\/p>\n
args.func(args)<\/p>\n
if __name__ == "__main__":<\/p>\n
main()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528add_subparsers()<\/code>\u65b9\u6cd5\u521b\u5efa\u5b50\u547d\u4ee4\u89e3\u6790\u5668\uff0c\u5e76\u4e3a\u6bcf\u4e2a\u5b50\u547d\u4ee4\u5b9a\u4e49\u81ea\u5df1\u7684\u53c2\u6570\u3002\u901a\u8fc7\u8bbe\u7f6efunc<\/code>\u5c5e\u6027\uff0c\u6211\u4eec\u53ef\u4ee5\u6307\u5b9a\u6bcf\u4e2a\u5b50\u547d\u4ee4\u7684\u5904\u7406\u51fd\u6570\u3002<\/p>\n<\/p>\n2\u3001\u4f7f\u7528click<\/code>\u5904\u7406\u5b50\u547d\u4ee4<\/h4>\n<\/p>\n\u4ee5\u4e0b\u662f\u4e00\u4e2a\u4f7f\u7528click<\/code>\u5904\u7406\u5b50\u547d\u4ee4\u7684\u793a\u4f8b\uff1a<\/p>\n<\/p>\nimport click<\/p>\n@click.group()<\/p>\n
def cli():<\/p>\n
pass<\/p>\n
@click.command()<\/p>\n
@click.option('--name', prompt='Your name', help='The person to greet.')<\/p>\n
@click.option('--age', prompt='Your age', help='Your age.', type=int)<\/p>\n
def greet(name, age):<\/p>\n
click.echo(f"Hello, {name}! You are {age} years old.")<\/p>\n
@click.command()<\/p>\n
@click.option('--name', prompt='Your name', help='The person to bid farewell.')<\/p>\n
def farewell(name):<\/p>\n
click.echo(f"Goodbye, {name}! See you next time.")<\/p>\n
cli.add_command(greet)<\/p>\n
cli.add_command(farewell)<\/p>\n
if __name__ == '__main__':<\/p>\n
cli()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528click.group()<\/code>\u88c5\u9970\u5668\u5b9a\u4e49\u4e86\u4e00\u4e2a\u547d\u4ee4\u7ec4\uff0c\u5e76\u4f7f\u7528add_command()<\/code>\u65b9\u6cd5\u5c06\u5b50\u547d\u4ee4\u6dfb\u52a0\u5230\u547d\u4ee4\u7ec4\u4e2d\u3002<\/p>\n<\/p>\n\u516d\u3001\u5904\u7406\u73af\u5883\u53d8\u91cf<\/h3>\n<\/p>\n
\u6709\u65f6\uff0c\u6211\u4eec\u9700\u8981\u4ece\u73af\u5883\u53d8\u91cf\u4e2d\u8bfb\u53d6\u914d\u7f6e\u3002\u53ef\u4ee5\u4f7f\u7528os.environ<\/code>\u8bbf\u95ee\u73af\u5883\u53d8\u91cf\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\nimport os<\/p>\ndef main():<\/p>\n
name = os.getenv('USER_NAME', 'default_name')<\/p>\n
age = os.getenv('USER_AGE', 'default_age')<\/p>\n
print(f"Hello, {name}! You are {age} years old.")<\/p>\n
if __name__ == "__main__":<\/p>\n
main()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528os.getenv()<\/code>\u51fd\u6570\u8bfb\u53d6\u73af\u5883\u53d8\u91cfUSER_NAME<\/code>\u548cUSER_AGE<\/code>\uff0c\u5982\u679c\u53d8\u91cf\u4e0d\u5b58\u5728\uff0c\u5219\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002<\/p>\n<\/p>\n\u4e03\u3001\u5904\u7406\u5bc6\u7801\u8f93\u5165<\/h3>\n<\/p>\n
\u5728\u547d\u4ee4\u884c\u4ea4\u4e92\u4e2d\uff0c\u6709\u65f6\u9700\u8981\u5904\u7406\u5bc6\u7801\u8f93\u5165\u3002\u53ef\u4ee5\u4f7f\u7528getpass<\/code>\u6a21\u5757\u6765\u9690\u85cf\u7528\u6237\u8f93\u5165\u7684\u5bc6\u7801\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\nimport getpass<\/p>\ndef main():<\/p>\n
username = input("Enter your username: ")<\/p>\n
password = getpass.getpass("Enter your password: ")<\/p>\n
print(f"Username: {username}")<\/p>\n
print(f"Password: {'*' * len(password)}")<\/p>\n
if __name__ == "__main__":<\/p>\n
main()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528getpass.getpass()<\/code>\u51fd\u6570\u8bfb\u53d6\u7528\u6237\u8f93\u5165\u7684\u5bc6\u7801\uff0c\u5e76\u5728\u8f93\u51fa\u65f6\u7528\u661f\u53f7\u4ee3\u66ff\u5bc6\u7801\u5b57\u7b26\u3002<\/p>\n<\/p>\n\u516b\u3001\u5904\u7406\u591a\u7ebf\u7a0b\u548c\u5f02\u6b65\u4ea4\u4e92<\/h3>\n<\/p>\n
\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u9700\u8981\u5728\u547d\u4ee4\u884c\u4ea4\u4e92\u4e2d\u5904\u7406\u591a\u7ebf\u7a0b\u6216\u5f02\u6b65\u64cd\u4f5c\u3002\u53ef\u4ee5\u4f7f\u7528threading<\/code>\u6216asyncio<\/code>\u6a21\u5757\u5b9e\u73b0\uff0c\u4ee5\u4e0b\u662f\u4e00\u4e2a\u793a\u4f8b\uff1a<\/p>\n<\/p>\n1\u3001\u4f7f\u7528threading<\/code>\u6a21\u5757\u5904\u7406\u591a\u7ebf\u7a0b\u4ea4\u4e92<\/h4>\n<\/p>\nimport threading<\/p>\nimport time<\/p>\n
def print_numbers():<\/p>\n
for i in range(1, 11):<\/p>\n
print(i)<\/p>\n
time.sleep(1)<\/p>\n
def main():<\/p>\n
thread = threading.Thread(target=print_numbers)<\/p>\n
thread.start()<\/p>\n
name = input("Enter your name: ")<\/p>\n
print(f"Hello, {name}!")<\/p>\n
thread.join()<\/p>\n
if __name__ == "__main__":<\/p>\n
main()<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e00\u4e2a\u7ebf\u7a0b\u6765\u6253\u5370\u6570\u5b57\uff0c\u540c\u65f6\u5728\u4e3b\u7ebf\u7a0b\u4e2d\u8fdb\u884c\u7528\u6237\u8f93\u5165\u7684\u4ea4\u4e92\u3002<\/p>\n<\/p>\n
2\u3001\u4f7f\u7528asyncio<\/code>\u6a21\u5757\u5904\u7406\u5f02\u6b65\u4ea4\u4e92<\/h4>\n<\/p>\nimport asyncio<\/p>\nasync def print_numbers():<\/p>\n
for i in range(1, 11):<\/p>\n
print(i)<\/p>\n
await asyncio.sleep(1)<\/p>\n
async def main():<\/p>\n
task = asyncio.create_task(print_numbers())<\/p>\n
name = input("Enter your name: ")<\/p>\n
print(f"Hello, {name}!")<\/p>\n
await task<\/p>\n
if __name__ == "__main__":<\/p>\n
asyncio.run(main())<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528asyncio<\/code>\u6a21\u5757\u521b\u5efa\u4e00\u4e2a\u5f02\u6b65\u4efb\u52a1\u6765\u6253\u5370\u6570\u5b57\uff0c\u540c\u65f6\u5728\u4e3b\u7ebf\u7a0b\u4e2d\u8fdb\u884c\u7528\u6237\u8f93\u5165\u7684\u4ea4\u4e92\u3002<\/p>\n<\/p>\n\u4e5d\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
\u5728Python\u4e2d\u8fdb\u884c\u547d\u4ee4\u884c\u4ea4\u4e92\u6709\u591a\u79cd\u65b9\u5f0f\uff0c\u5305\u62ec\u4f7f\u7528input()<\/code>\u51fd\u6570\u3001argparse<\/code>\u6a21\u5757\u3001sys.argv<\/code>\u3001click<\/code>\u5e93\u7b49\u3002\u6839\u636e\u5177\u4f53\u9700\u6c42\u9009\u62e9\u5408\u9002\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u7528\u6237\u4f53\u9a8c\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u5bf9\u4e8e\u7b80\u5355\u7684\u8f93\u5165\u8f93\u51fa\u4ea4\u4e92\uff0c\u4f7f\u7528input()<\/code>\u51fd\u6570\u5373\u53ef\uff1b\u5bf9\u4e8e\u590d\u6742\u7684\u547d\u4ee4\u884c\u53c2\u6570\u89e3\u6790\uff0c\u63a8\u8350\u4f7f\u7528argparse<\/code>\u6a21\u5757\uff1b\u5bf9\u4e8e\u66f4\u590d\u6742\u7684\u4ea4\u4e92\u9700\u6c42\uff0c\u53ef\u4ee5\u4f7f\u7528click<\/code>\u5e93\u3002\u6b64\u5916\uff0c\u8fd8\u53ef\u4ee5\u7ed3\u5408\u4f7f\u7528\u591a\u7ebf\u7a0b\u548c\u5f02\u6b65\u64cd\u4f5c\u6765\u5904\u7406\u66f4\u590d\u6742\u7684\u4ea4\u4e92\u573a\u666f\u3002<\/p>\n<\/p>\n\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n \u5982\u4f55\u5728Python\u4e2d\u521b\u5efa\u547d\u4ee4\u884c\u4ea4\u4e92\u7a0b\u5e8f\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u5185\u7f6e\u7684input()<\/code>\u51fd\u6570\u6765\u83b7\u53d6\u7528\u6237\u8f93\u5165\u3002\u901a\u8fc7\u5faa\u73af\u548c\u6761\u4ef6\u5224\u65ad\uff0c\u53ef\u4ee5\u8bbe\u8ba1\u4e00\u4e2a\u547d\u4ee4\u884c\u4ea4\u4e92\u5f0f\u7a0b\u5e8f\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u83dc\u5355\uff0c\u63d0\u793a\u7528\u6237\u8f93\u5165\u9009\u62e9\uff0c\u5e76\u6839\u636e\u7528\u6237\u7684\u9009\u62e9\u6267\u884c\u76f8\u5e94\u7684\u529f\u80fd\u3002\u7ed3\u5408\u4f7f\u7528print()<\/code>\u51fd\u6570\uff0c\u53ef\u4ee5\u5411\u7528\u6237\u53cd\u9988\u4fe1\u606f\uff0c\u589e\u5f3a\u4ea4\u4e92\u4f53\u9a8c\u3002<\/p>\n\u6709\u54ea\u4e9b\u5e93\u53ef\u4ee5\u5e2e\u52a9\u6211\u6784\u5efa\u66f4\u590d\u6742\u7684\u547d\u4ee4\u884c\u754c\u9762\uff1f<\/strong>
\u4e3a\u4e86\u521b\u5efa\u66f4\u590d\u6742\u7684\u547d\u4ee4\u884c\u754c\u9762\uff0cPython\u63d0\u4f9b\u4e86\u591a\u4e2a\u5f3a\u5927\u7684\u5e93\uff0c\u4f8b\u5982argparse<\/code>\u7528\u4e8e\u5904\u7406\u547d\u4ee4\u884c\u53c2\u6570\uff0cclick<\/code>\u548cprompt_toolkit<\/code>\u53ef\u4ee5\u5e2e\u52a9\u4f60\u521b\u5efa\u66f4\u53cb\u597d\u7684\u547d\u4ee4\u884c\u5e94\u7528\u3002\u8fd9\u4e9b\u5e93\u652f\u6301\u9009\u9879\u3001\u5b50\u547d\u4ee4\u548c\u5e2e\u52a9\u4fe1\u606f\uff0c\u4f7f\u5f97\u6784\u5efa\u590d\u6742\u4ea4\u4e92\u53d8\u5f97\u66f4\u52a0\u7b80\u5355\u548c\u76f4\u89c2\u3002<\/p>\n\u5982\u4f55\u5904\u7406\u7528\u6237\u8f93\u5165\u7684\u9519\u8bef\u6216\u5f02\u5e38\uff1f<\/strong>
\u5728\u547d\u4ee4\u884c\u4ea4\u4e92\u4e2d\uff0c\u7528\u6237\u53ef\u80fd\u4f1a\u8f93\u5165\u65e0\u6548\u7684\u6570\u636e\u3002\u53ef\u4ee5\u4f7f\u7528try<\/code>\u548cexcept<\/code>\u8bed\u53e5\u6765\u6355\u83b7\u8fd9\u4e9b\u5f02\u5e38\uff0c\u4ece\u800c\u63d0\u4f9b\u53cb\u597d\u7684\u9519\u8bef\u63d0\u793a\u3002\u4f8b\u5982\uff0c\u5982\u679c\u671f\u671b\u7528\u6237\u8f93\u5165\u4e00\u4e2a\u6570\u5b57\uff0c\u53ef\u4ee5\u5728try<\/code>\u5757\u4e2d\u5c1d\u8bd5\u8f6c\u6362\u8f93\u5165\uff0c\u5982\u679c\u53d1\u751fValueError<\/code>\uff0c\u5219\u53ef\u4ee5\u63d0\u793a\u7528\u6237\u91cd\u65b0\u8f93\u5165\u6709\u6548\u7684\u6570\u5b57\uff0c\u786e\u4fdd\u7a0b\u5e8f\u7684\u5065\u58ee\u6027\u548c\u7528\u6237\u4f53\u9a8c\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"Python\u5982\u4f55\u505a\u547d\u4ee4\u884c\u4ea4\u4e92\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0b\u51e0\u79cd\u65b9\u5f0f\uff1a\u4f7f\u7528input()\u51fd\u6570\u8bfb\u53d6\u7528\u6237\u8f93\u5165\u3001\u4f7f\u7528argparse\u6a21\u5757 […]","protected":false},"author":3,"featured_media":1097479,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1097475"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1097475"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1097475\/revisions"}],"predecessor-version":[{"id":1097480,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1097475\/revisions\/1097480"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1097479"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1097475"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1097475"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1097475"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"python\u5982\u4f55\u505a\u547d\u4ee4\u884c\u4ea4\u4e92\"](\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/24212224\/463bae4c-877a-4691-9a35-469d740fee51.webp\")
<\/p>\n