{"id":1111144,"date":"2025-01-08T17:26:23","date_gmt":"2025-01-08T09:26:23","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1111144.html"},"modified":"2025-01-08T17:26:26","modified_gmt":"2025-01-08T09:26:26","slug":"python%e4%b8%ad%e7%9a%84%e5%87%bd%e6%95%b0%e5%8f%82%e6%95%b0%e6%98%af%e5%a6%82%e4%bd%95%e5%ae%9a%e4%b9%89%e7%9a%84","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1111144.html","title":{"rendered":"python\u4e2d\u7684\u51fd\u6570\u53c2\u6570\u662f\u5982\u4f55\u5b9a\u4e49\u7684"},"content":{"rendered":"

\"python\u4e2d\u7684\u51fd\u6570\u53c2\u6570\u662f\u5982\u4f55\u5b9a\u4e49\u7684\"<\/p>\n

\u5728Python\u4e2d\uff0c\u51fd\u6570\u53c2\u6570\u7684\u5b9a\u4e49\u662f\u975e\u5e38\u7075\u6d3b\u4e14\u5f3a\u5927\u7684\u3002\u51fd\u6570\u53c2\u6570\u5b9a\u4e49\u5305\u62ec\u4f4d\u7f6e\u53c2\u6570\u3001\u9ed8\u8ba4\u53c2\u6570\u3001\u5173\u952e\u5b57\u53c2\u6570\u3001\u53ef\u53d8\u53c2\u6570<\/strong>\u3002\u4e0b\u9762\u6211\u4eec\u5c06\u8be6\u7ec6\u4ecb\u7ecd\u8fd9\u4e9b\u53c2\u6570\u7c7b\u578b\uff0c\u5e76\u63a2\u8ba8\u5b83\u4eec\u5728\u5b9e\u9645\u7f16\u7a0b\u4e2d\u7684\u5e94\u7528\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u4f4d\u7f6e\u53c2\u6570<\/h3>\n<\/p>\n

\u4f4d\u7f6e\u53c2\u6570\u662f\u51fd\u6570\u5b9a\u4e49\u4e2d\u6700\u5e38\u89c1\u7684\u53c2\u6570\u7c7b\u578b\uff0c\u5728\u8c03\u7528\u51fd\u6570\u65f6\u5fc5\u987b\u6309\u987a\u5e8f\u4f20\u9012\u3002\u4f4d\u7f6e\u53c2\u6570\u7684\u987a\u5e8f\u51b3\u5b9a\u4e86\u6bcf\u4e2a\u53c2\u6570\u7684\u503c\u3002<\/p>\n<\/p>\n

def add(a, b):<\/p>\n
    return a + b<\/p>\n
print(add(3, 4))  # \u8f93\u51fa 7<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0ca<\/code>\u548cb<\/code>\u662f\u4f4d\u7f6e\u53c2\u6570\uff0c\u8c03\u7528add<\/code>\u51fd\u6570\u65f6\uff0c\u5fc5\u987b\u6309\u987a\u5e8f\u4f20\u9012\u8fd9\u4e24\u4e2a\u53c2\u6570\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u9ed8\u8ba4\u53c2\u6570<\/h3>\n<\/p>\n
\u9ed8\u8ba4\u53c2\u6570\u5141\u8bb8\u5728\u51fd\u6570\u5b9a\u4e49\u65f6\u4e3a\u67d0\u4e9b\u53c2\u6570\u63d0\u4f9b\u9ed8\u8ba4\u503c\u3002\u5982\u679c\u5728\u8c03\u7528\u51fd\u6570\u65f6\u6ca1\u6709\u4f20\u9012\u8fd9\u4e9b\u53c2\u6570\u7684\u503c\uff0c\u51fd\u6570\u5c06\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002<\/p>\n<\/p>\n
def greet(name, greeting="Hello"):<\/p>\n
    return f"{greeting}, {name}!"<\/p>\n
print(greet("Alice"))  # \u8f93\u51fa "Hello, Alice!"<\/p>\n
print(greet("Alice", "Hi"))  # \u8f93\u51fa "Hi, Alice!"<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0cgreeting<\/code>\u662f\u4e00\u4e2a\u9ed8\u8ba4\u53c2\u6570\u3002\u5982\u679c\u8c03\u7528greet<\/code>\u51fd\u6570\u65f6\u6ca1\u6709\u63d0\u4f9bgreeting<\/code>\u53c2\u6570\uff0c\u51fd\u6570\u5c06\u4f7f\u7528\u9ed8\u8ba4\u503c"Hello"\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u5173\u952e\u5b57\u53c2\u6570<\/h3>\n<\/p>\n
\u5173\u952e\u5b57\u53c2\u6570\u5141\u8bb8\u5728\u8c03\u7528\u51fd\u6570\u65f6\u901a\u8fc7\u53c2\u6570\u540d\u6765\u4f20\u9012\u503c\uff0c\u4ece\u800c\u53ef\u4ee5\u4e0d\u6309\u987a\u5e8f\u4f20\u9012\u53c2\u6570\u3002\u5173\u952e\u5b57\u53c2\u6570\u4f7f\u5f97\u51fd\u6570\u8c03\u7528\u66f4\u52a0\u6e05\u6670\u3002<\/p>\n<\/p>\n
def describe_pet(animal_type, pet_name):<\/p>\n
    return f"I have a {animal_type} named {pet_name}."<\/p>\n
print(describe_pet(animal_type="hamster", pet_name="Harry"))  # \u8f93\u51fa "I have a hamster named Harry."<\/p>\n
print(describe_pet(pet_name="Harry", animal_type="hamster"))  # \u8f93\u51fa "I have a hamster named Harry."<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0canimal_type<\/code>\u548cpet_name<\/code>\u662f\u5173\u952e\u5b57\u53c2\u6570\uff0c\u53ef\u4ee5\u901a\u8fc7\u53c2\u6570\u540d\u4f20\u9012\u503c\uff0c\u987a\u5e8f\u65e0\u5173\u7d27\u8981\u3002<\/p>\n<\/p>\n
\u56db\u3001\u53ef\u53d8\u53c2\u6570<\/h3>\n<\/p>\n
\u53ef\u53d8\u53c2\u6570\u5141\u8bb8\u51fd\u6570\u63a5\u53d7\u4efb\u610f\u6570\u91cf\u7684\u4f4d\u7f6e\u53c2\u6570\u6216\u5173\u952e\u5b57\u53c2\u6570\u3002\u53ef\u53d8\u53c2\u6570\u5206\u4e3a\u4e24\u79cd\uff1a*args\uff08\u4f4d\u7f6e\u53c2\u6570\uff09\u548ckwargs\uff08\u5173\u952e\u5b57\u53c2\u6570\uff09\u3002<\/p>\n<\/p>\n
1. *args<\/h4>\n<\/p>\n
*args\u5141\u8bb8\u4f20\u9012\u4efb\u610f\u6570\u91cf\u7684\u4f4d\u7f6e\u53c2\u6570\uff0c\u51fd\u6570\u5c06\u8fd9\u4e9b\u53c2\u6570\u4f5c\u4e3a\u4e00\u4e2a\u5143\u7ec4\u63a5\u6536\u3002<\/p>\n<\/p>\n
def make_pizza(size, *toppings):<\/p>\n
    print(f"Making a {size}-inch pizza with the following toppings:")<\/p>\n
    for topping in toppings:<\/p>\n
        print(f"- {topping}")<\/p>\n
make_pizza(12, "pepperoni", "mushrooms", "green peppers")<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c*toppings<\/code>\u5141\u8bb8\u4f20\u9012\u4efb\u610f\u6570\u91cf\u7684\u914d\u6599\uff0c\u51fd\u6570\u5c06\u8fd9\u4e9b\u914d\u6599\u4f5c\u4e3a\u4e00\u4e2a\u5143\u7ec4\u63a5\u6536\u3002<\/p>\n<\/p>\n
2. kwargs<\/h4>\n<\/p>\n
kwargs\u5141\u8bb8\u4f20\u9012\u4efb\u610f\u6570\u91cf\u7684\u5173\u952e\u5b57\u53c2\u6570\uff0c\u51fd\u6570\u5c06\u8fd9\u4e9b\u53c2\u6570\u4f5c\u4e3a\u4e00\u4e2a\u5b57\u5178\u63a5\u6536\u3002<\/p>\n<\/p>\n
def build_profile(first, last, user_info):<\/p>\n
    profile = {}<\/p>\n
    profile['first_name'] = first<\/p>\n
    profile['last_name'] = last<\/p>\n
    for key, value in user_info.items():<\/p>\n
        profile[key] = value<\/p>\n
    return profile<\/p>\n
user_profile = build_profile('albert', 'einstein', location='princeton', field='physics')<\/p>\n
print(user_profile)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0cuser_info<\/code>\u5141\u8bb8\u4f20\u9012\u4efb\u610f\u6570\u91cf\u7684\u5173\u952e\u5b57\u53c2\u6570\uff0c\u51fd\u6570\u5c06\u8fd9\u4e9b\u53c2\u6570\u4f5c\u4e3a\u4e00\u4e2a\u5b57\u5178\u63a5\u6536\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u53c2\u6570\u7684\u987a\u5e8f<\/h3>\n<\/p>\n
\u5728\u5b9a\u4e49\u51fd\u6570\u65f6\uff0c\u53c2\u6570\u7684\u987a\u5e8f\u975e\u5e38\u91cd\u8981\u3002\u5fc5\u987b\u9075\u5faa\u4ee5\u4e0b\u987a\u5e8f\uff1a\u4f4d\u7f6e\u53c2\u6570\u3001\u9ed8\u8ba4\u53c2\u6570\u3001*args\u3001\u5173\u952e\u5b57\u53c2\u6570\u3001kwargs\u3002<\/p>\n<\/p>\n
def func(a, b=2, *args, d, kwargs):<\/p>\n
    print(a, b, args, d, kwargs)<\/p>\n
func(1, 3, 4, 5, d=6, e=7, f=8)  # \u8f93\u51fa 1 3 (4, 5) 6 {'e': 7, 'f': 8}<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0c\u53c2\u6570\u7684\u987a\u5e8f\u4f9d\u6b21\u4e3a\u4f4d\u7f6e\u53c2\u6570a<\/code>\uff0c\u9ed8\u8ba4\u53c2\u6570b<\/code>\uff0c\u53ef\u53d8\u4f4d\u7f6e\u53c2\u6570*args<\/code>\uff0c\u5173\u952e\u5b57\u53c2\u6570d<\/code>\uff0c\u53ef\u53d8\u5173\u952e\u5b57\u53c2\u6570kwargs<\/code>\u3002<\/p>\n<\/p>\n
\u516d\u3001\u53c2\u6570\u7c7b\u578b\u6ce8\u89e3<\/h3>\n<\/p>\n
Python \u8fd8\u5141\u8bb8\u4e3a\u51fd\u6570\u53c2\u6570\u6dfb\u52a0\u7c7b\u578b\u6ce8\u89e3\uff0c\u4ee5\u63d0\u9ad8\u4ee3\u7801\u7684\u53ef\u8bfb\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002\u4e0d\u8fc7\uff0c\u7c7b\u578b\u6ce8\u89e3\u5e76\u4e0d\u4f1a\u5bf9\u53c2\u6570\u7c7b\u578b\u8fdb\u884c\u5f3a\u5236\u68c0\u67e5\uff0c\u5b83\u4eec\u4e3b\u8981\u7528\u4e8e\u6587\u6863\u548c\u4ee3\u7801\u63d0\u793a\u3002<\/p>\n<\/p>\n
def add(a: int, b: int) -> int:<\/p>\n
    return a + b<\/p>\n
print(add(3, 4))  # \u8f93\u51fa 7<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u4f8b\u5b50\u4e2d\uff0ca<\/code>\u548cb<\/code>\u88ab\u6ce8\u89e3\u4e3aint<\/code>\u7c7b\u578b\uff0c\u51fd\u6570\u8fd4\u56de\u503c\u4e5f\u88ab\u6ce8\u89e3\u4e3aint<\/code>\u7c7b\u578b\u3002<\/p>\n<\/p>\n
\u4e03\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
\u901a\u8fc7\u4ee5\u4e0a\u5185\u5bb9\uff0c\u6211\u4eec\u53ef\u4ee5\u770b\u5230\uff0cPython\u4e2d\u7684\u51fd\u6570\u53c2\u6570\u5b9a\u4e49\u662f\u975e\u5e38\u7075\u6d3b\u4e14\u5f3a\u5927\u7684\u3002\u4f4d\u7f6e\u53c2\u6570\u3001\u9ed8\u8ba4\u53c2\u6570\u3001\u5173\u952e\u5b57\u53c2\u6570\u3001\u53ef\u53d8\u53c2\u6570<\/strong>\u90fd\u63d0\u4f9b\u4e86\u4e0d\u540c\u7684\u529f\u80fd\uff0c\u4f7f\u5f97\u51fd\u6570\u80fd\u591f\u5904\u7406\u5404\u79cd\u4e0d\u540c\u7684\u8c03\u7528\u573a\u666f\u3002\u5728\u5b9e\u9645\u7f16\u7a0b\u4e2d\uff0c\u5408\u7406\u5730\u4f7f\u7528\u8fd9\u4e9b\u53c2\u6570\u7c7b\u578b\uff0c\u53ef\u4ee5\u4f7f\u4ee3\u7801\u66f4\u52a0\u7b80\u6d01\u3001\u6e05\u6670\u548c\u6613\u4e8e\u7ef4\u62a4\u3002<\/p>\n<\/p>\n
\u5e0c\u671b\u8fd9\u7bc7\u6587\u7ae0\u80fd\u5e2e\u52a9\u4f60\u66f4\u597d\u5730\u7406\u89e3\u548c\u638c\u63e1Python\u4e2d\u7684\u51fd\u6570\u53c2\u6570\u5b9a\u4e49\u3002\u5982\u679c\u4f60\u6709\u4efb\u4f55\u95ee\u9898\u6216\u5efa\u8bae\uff0c\u6b22\u8fce\u7559\u8a00\u8ba8\u8bba\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u4ec0\u4e48\u662fPython\u4e2d\u7684\u51fd\u6570\u53c2\u6570\uff1f<\/strong>
Python\u4e2d\u7684\u51fd\u6570\u53c2\u6570\u662f\u6307\u5728\u5b9a\u4e49\u51fd\u6570\u65f6\uff0c\u5141\u8bb8\u8f93\u5165\u7684\u53d8\u91cf\u3002\u53c2\u6570\u53ef\u4ee5\u662f\u4f4d\u7f6e\u53c2\u6570\u3001\u5173\u952e\u5b57\u53c2\u6570\u3001\u9ed8\u8ba4\u53c2\u6570\u548c\u53ef\u53d8\u53c2\u6570\u3002\u901a\u8fc7\u8fd9\u4e9b\u53c2\u6570\uff0c\u7528\u6237\u53ef\u4ee5\u5c06\u4e0d\u540c\u7684\u503c\u4f20\u9012\u7ed9\u51fd\u6570\uff0c\u4ece\u800c\u4f7f\u51fd\u6570\u66f4\u5177\u7075\u6d3b\u6027\u548c\u590d\u7528\u6027\u3002<\/p>\n
\u5982\u4f55\u5b9a\u4e49\u5177\u6709\u9ed8\u8ba4\u503c\u7684\u53c2\u6570\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u4e3a\u51fd\u6570\u7684\u53c2\u6570\u6307\u5b9a\u9ed8\u8ba4\u503c\u3002\u8fd9\u6837\uff0c\u5f53\u8c03\u7528\u51fd\u6570\u65f6\uff0c\u5982\u679c\u6ca1\u6709\u63d0\u4f9b\u76f8\u5e94\u7684\u53c2\u6570\u503c\uff0c\u5219\u4f1a\u4f7f\u7528\u5b9a\u4e49\u65f6\u6307\u5b9a\u7684\u9ed8\u8ba4\u503c\u3002\u4f8b\u5982\uff0c\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u65f6\uff0c\u53ef\u4ee5\u5199\u6210def my_function(param1, param2=10):<\/code>\uff0c\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cparam2<\/code>\u7684\u9ed8\u8ba4\u503c\u4e3a10\u3002<\/p>\n
\u53ef\u53d8\u53c2\u6570\u548c\u5173\u952e\u5b57\u53c2\u6570\u6709\u4ec0\u4e48\u533a\u522b\uff1f<\/strong>
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