{"id":1165882,"date":"2025-01-15T15:25:45","date_gmt":"2025-01-15T07:25:45","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/1165882.html"},"modified":"2025-01-15T15:25:48","modified_gmt":"2025-01-15T07:25:48","slug":"python%e5%a6%82%e4%bd%95%e5%ae%9a%e4%b9%89%e7%b1%bb%e7%9a%84%e5%8f%82%e6%95%b0","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/1165882.html","title":{"rendered":"python\u5982\u4f55\u5b9a\u4e49\u7c7b\u7684\u53c2\u6570"},"content":{"rendered":"

\"python\u5982\u4f55\u5b9a\u4e49\u7c7b\u7684\u53c2\u6570\"<\/p>\n

\u5b9a\u4e49\u7c7b\u7684\u53c2\u6570\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a\u5728\u7c7b\u7684\u6784\u9020\u51fd\u6570\u4e2d\u5b9a\u4e49\u6784\u9020\u53c2\u6570\u3001\u5728\u7c7b\u7684\u5c5e\u6027\u4e2d\u5b9a\u4e49\u9ed8\u8ba4\u53c2\u6570\u3002\u6784\u9020\u51fd\u6570\u53c2\u6570\u3001\u9ed8\u8ba4\u5c5e\u6027\u3002<\/strong> <\/p>\n<\/p>\n

\u5f53\u6211\u4eec\u5728\u5b9a\u4e49\u4e00\u4e2a\u7c7b\u65f6\uff0c\u901a\u5e38\u4f1a\u4f7f\u7528\u6784\u9020\u51fd\u6570 __init__<\/code> \u6765\u521d\u59cb\u5316\u5bf9\u8c61\u7684\u5c5e\u6027\u3002\u901a\u8fc7\u5728 __init__<\/code> \u65b9\u6cd5\u4e2d\u5b9a\u4e49\u53c2\u6570\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u521b\u5efa\u5bf9\u8c61\u65f6\u4e3a\u5176\u4f20\u9012\u521d\u59cb\u503c\u3002\u8fd9\u79cd\u65b9\u5f0f\u5728\u5b9a\u4e49\u5bf9\u8c61\u7684\u521d\u59cb\u72b6\u6001\u65f6\u975e\u5e38\u6709\u7528\u3002\u4e0b\u9762\u6211\u4eec\u6765\u8be6\u7ec6\u63cf\u8ff0\u4e00\u4e0b\u5982\u4f55\u5728\u6784\u9020\u51fd\u6570\u4e2d\u5b9a\u4e49\u7c7b\u7684\u53c2\u6570\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u6784\u9020\u51fd\u6570\u53c2\u6570<\/h3>\n<\/p>\n

Python\u4e2d\u7684\u7c7b\u901a\u8fc7\u5b9a\u4e49\u6784\u9020\u51fd\u6570__init__<\/code>\u6765\u521d\u59cb\u5316\u5bf9\u8c61\u7684\u72b6\u6001\u3002\u6784\u9020\u51fd\u6570\u53c2\u6570\u4f7f\u6211\u4eec\u80fd\u591f\u5728\u5b9e\u4f8b\u5316\u5bf9\u8c61\u65f6\u4f20\u9012\u53c2\u6570\uff0c\u4ece\u800c\u8bbe\u7f6e\u5bf9\u8c61\u7684\u521d\u59cb\u72b6\u6001\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5b9a\u4e49\u548c\u4f7f\u7528\u6784\u9020\u51fd\u6570\u53c2\u6570\u7684\u8be6\u7ec6\u6b65\u9aa4\u548c\u793a\u4f8b\uff1a<\/p>\n<\/p>\n

1\u3001\u5b9a\u4e49\u6784\u9020\u51fd\u6570\u53c2\u6570<\/h4>\n<\/p>\n

\u5728\u7c7b\u7684\u5b9a\u4e49\u4e2d\uff0c\u6784\u9020\u51fd\u6570__init__<\/code> \u662f\u4e00\u4e2a\u7279\u6b8a\u7684\u65b9\u6cd5\uff0c\u5b83\u5728\u5bf9\u8c61\u521b\u5efa\u65f6\u81ea\u52a8\u8c03\u7528\u3002\u6211\u4eec\u53ef\u4ee5\u5728__init__<\/code>\u65b9\u6cd5\u4e2d\u5b9a\u4e49\u53c2\u6570\uff0c\u5e76\u5c06\u8fd9\u4e9b\u53c2\u6570\u8d4b\u503c\u7ed9\u5bf9\u8c61\u7684\u5c5e\u6027\u3002 <\/p>\n<\/p>\n

class Person:<\/p>\n
    def __init__(self, name, age):<\/p>\n
        self.name = name<\/p>\n
        self.age = age<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u7c7bPerson<\/code>\u7684\u6784\u9020\u51fd\u6570\u63a5\u53d7\u4e24\u4e2a\u53c2\u6570 name<\/code> \u548c age<\/code>\uff0c\u5e76\u5c06\u5b83\u4eec\u8d4b\u503c\u7ed9\u5bf9\u8c61\u7684\u5c5e\u6027 self.name<\/code> \u548c self.age<\/code>\u3002<\/p>\n<\/p>\n
2\u3001\u521b\u5efa\u5bf9\u8c61\u5e76\u4f20\u9012\u53c2\u6570<\/h4>\n<\/p>\n
\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u4f20\u9012\u53c2\u6570\u6765\u521b\u5efa\u5bf9\u8c61\uff0c\u4ece\u800c\u521d\u59cb\u5316\u5bf9\u8c61\u7684\u5c5e\u6027\u3002<\/p>\n<\/p>\n
person1 = Person("Alice", 30)<\/p>\n
print(person1.name)  # \u8f93\u51fa: Alice<\/p>\n
print(person1.age)   # \u8f93\u51fa: 30<\/p>\n
person2 = Person("Bob", 25)<\/p>\n
print(person2.name)  # \u8f93\u51fa: Bob<\/p>\n
print(person2.age)   # \u8f93\u51fa: 25<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e86\u4e24\u4e2a Person<\/code> \u5bf9\u8c61\uff0c\u5e76\u4f20\u9012\u4e86\u4e0d\u540c\u7684\u53c2\u6570\u3002\u6bcf\u4e2a\u5bf9\u8c61\u7684\u5c5e\u6027\u90fd\u88ab\u521d\u59cb\u5316\u4e3a\u4e0d\u540c\u7684\u503c\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u9ed8\u8ba4\u5c5e\u6027<\/h3>\n<\/p>\n
\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u6211\u4eec\u53ef\u80fd\u5e0c\u671b\u4e3a\u7c7b\u7684\u5c5e\u6027\u8bbe\u7f6e\u9ed8\u8ba4\u503c\u3002\u5982\u679c\u6ca1\u6709\u5728\u521b\u5efa\u5bf9\u8c61\u65f6\u4f20\u9012\u53c2\u6570\uff0c\u8fd9\u4e9b\u5c5e\u6027\u5c06\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5b9a\u4e49\u548c\u4f7f\u7528\u9ed8\u8ba4\u5c5e\u6027\u7684\u8be6\u7ec6\u6b65\u9aa4\u548c\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
1\u3001\u5b9a\u4e49\u9ed8\u8ba4\u5c5e\u6027<\/h4>\n<\/p>\n
\u6211\u4eec\u53ef\u4ee5\u5728\u7c7b\u7684\u5b9a\u4e49\u4e2d\u76f4\u63a5\u4e3a\u5c5e\u6027\u8bbe\u7f6e\u9ed8\u8ba4\u503c\u3002\u5982\u679c\u6ca1\u6709\u5728\u6784\u9020\u51fd\u6570\u4e2d\u4f20\u9012\u53c2\u6570\uff0c\u8fd9\u4e9b\u5c5e\u6027\u5c06\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002<\/p>\n<\/p>\n
class Person:<\/p>\n
    def __init__(self, name="Unknown", age=0):<\/p>\n
        self.name = name<\/p>\n
        self.age = age<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u7c7bPerson<\/code>\u7684\u5c5e\u6027name<\/code>\u548cage<\/code>\u6709\u9ed8\u8ba4\u503c\u3002\u5982\u679c\u5728\u521b\u5efa\u5bf9\u8c61\u65f6\u6ca1\u6709\u4f20\u9012\u53c2\u6570\uff0c\u8fd9\u4e9b\u5c5e\u6027\u5c06\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002<\/p>\n<\/p>\n
2\u3001\u521b\u5efa\u5bf9\u8c61\u5e76\u4f7f\u7528\u9ed8\u8ba4\u5c5e\u6027<\/h4>\n<\/p>\n
\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u5bf9\u8c61\u800c\u4e0d\u4f20\u9012\u53c2\u6570\uff0c\u6b64\u65f6\u5bf9\u8c61\u7684\u5c5e\u6027\u5c06\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002<\/p>\n<\/p>\n
person1 = Person()<\/p>\n
print(person1.name)  # \u8f93\u51fa: Unknown<\/p>\n
print(person1.age)   # \u8f93\u51fa: 0<\/p>\n
person2 = Person("Charlie", 40)<\/p>\n
print(person2.name)  # \u8f93\u51fa: Charlie<\/p>\n
print(person2.age)   # \u8f93\u51fa: 40<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0c\u7b2c\u4e00\u4e2a Person<\/code> \u5bf9\u8c61\u4f7f\u7528\u4e86\u9ed8\u8ba4\u5c5e\u6027\u503c\uff0c\u800c\u7b2c\u4e8c\u4e2a Person<\/code> \u5bf9\u8c61\u4f20\u9012\u4e86\u53c2\u6570\uff0c\u4ece\u800c\u8986\u76d6\u4e86\u9ed8\u8ba4\u503c\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u7c7b\u5c5e\u6027\u4e0e\u5b9e\u4f8b\u5c5e\u6027<\/h3>\n<\/p>\n
\u5728Python\u4e2d\uff0c\u7c7b\u5c5e\u6027\u662f\u6240\u6709\u5b9e\u4f8b\u5171\u4eab\u7684\u5c5e\u6027\uff0c\u800c\u5b9e\u4f8b\u5c5e\u6027\u662f\u6bcf\u4e2a\u5b9e\u4f8b\u72ec\u6709\u7684\u5c5e\u6027\u3002\u4ee5\u4e0b\u662f\u7c7b\u5c5e\u6027\u548c\u5b9e\u4f8b\u5c5e\u6027\u7684\u533a\u522b\u548c\u4f7f\u7528\u65b9\u6cd5\uff1a<\/p>\n<\/p>\n
1\u3001\u5b9a\u4e49\u7c7b\u5c5e\u6027<\/h4>\n<\/p>\n
\u7c7b\u5c5e\u6027\u662f\u5728\u7c7b\u5b9a\u4e49\u4e2d\u76f4\u63a5\u5b9a\u4e49\u7684\u5c5e\u6027\uff0c\u5b83\u4eec\u662f\u6240\u6709\u5b9e\u4f8b\u5171\u4eab\u7684\u3002<\/p>\n<\/p>\n
class Person:<\/p>\n
    species = "Homo sapiens"  # \u7c7b\u5c5e\u6027<\/p>\n
    def __init__(self, name, age):<\/p>\n
        self.name = name       # \u5b9e\u4f8b\u5c5e\u6027<\/p>\n
        self.age = age         # \u5b9e\u4f8b\u5c5e\u6027<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cspecies<\/code> \u662f\u4e00\u4e2a\u7c7b\u5c5e\u6027\uff0c\u800c name<\/code> \u548c age<\/code> \u662f\u5b9e\u4f8b\u5c5e\u6027\u3002<\/p>\n<\/p>\n
2\u3001\u8bbf\u95ee\u7c7b\u5c5e\u6027\u548c\u5b9e\u4f8b\u5c5e\u6027<\/h4>\n<\/p>\n
\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u7c7b\u540d\u548c\u5b9e\u4f8b\u540d\u8bbf\u95ee\u7c7b\u5c5e\u6027\u548c\u5b9e\u4f8b\u5c5e\u6027\u3002<\/p>\n<\/p>\n
print(Person.species)  # \u8f93\u51fa: Homo sapiens<\/p>\n
person1 = Person("Alice", 30)<\/p>\n
print(person1.species)  # \u8f93\u51fa: Homo sapiens<\/p>\n
print(person1.name)     # \u8f93\u51fa: Alice<\/p>\n
print(person1.age)      # \u8f93\u51fa: 30<\/p>\n
person2 = Person("Bob", 25)<\/p>\n
print(person2.species)  # \u8f93\u51fa: Homo sapiens<\/p>\n
print(person2.name)     # \u8f93\u51fa: Bob<\/p>\n
print(person2.age)      # \u8f93\u51fa: 25<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cspecies<\/code> \u7c7b\u5c5e\u6027\u53ef\u4ee5\u901a\u8fc7\u7c7b\u540d Person<\/code> \u8bbf\u95ee\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u5b9e\u4f8b\u540d person1<\/code> \u548c person2<\/code> \u8bbf\u95ee\u3002<\/p>\n<\/p>\n
\u56db\u3001\u5728\u7c7b\u4e2d\u4f7f\u7528\u66f4\u591a\u9ad8\u7ea7\u7279\u6027<\/h3>\n<\/p>\n
Python\u4e2d\u7684\u7c7b\u4e0d\u4ec5\u4ec5\u5c40\u9650\u4e8e\u5b9a\u4e49\u6784\u9020\u51fd\u6570\u548c\u5c5e\u6027\uff0c\u8fd8\u53ef\u4ee5\u4f7f\u7528\u66f4\u591a\u7684\u9ad8\u7ea7\u7279\u6027\uff0c\u5982\u7c7b\u65b9\u6cd5\u3001\u9759\u6001\u65b9\u6cd5\u3001\u5c5e\u6027\u65b9\u6cd5\u7b49\u3002\u4ee5\u4e0b\u662f\u8fd9\u4e9b\u9ad8\u7ea7\u7279\u6027\u7684\u8be6\u7ec6\u4ecb\u7ecd\u548c\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
1\u3001\u7c7b\u65b9\u6cd5<\/h4>\n<\/p>\n
\u7c7b\u65b9\u6cd5\u662f\u7ed1\u5b9a\u5230\u7c7b\u800c\u4e0d\u662f\u5b9e\u4f8b\u7684\u65b9\u6cd5\u3002\u5b83\u4eec\u4f7f\u7528 @classmethod<\/code> \u88c5\u9970\u5668\u5b9a\u4e49\uff0c\u5e76\u4e14\u7b2c\u4e00\u4e2a\u53c2\u6570\u662f\u7c7b\u672c\u8eab\uff0c\u901a\u5e38\u547d\u540d\u4e3a cls<\/code>\u3002<\/p>\n<\/p>\n
class Person:<\/p>\n
    species = "Homo sapiens"<\/p>\n
    def __init__(self, name, age):<\/p>\n
        self.name = name<\/p>\n
        self.age = age<\/p>\n
    @classmethod<\/p>\n
    def get_species(cls):<\/p>\n
        return cls.species<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cget_species<\/code> \u662f\u4e00\u4e2a\u7c7b\u65b9\u6cd5\uff0c\u53ef\u4ee5\u901a\u8fc7\u7c7b\u540d\u548c\u5b9e\u4f8b\u540d\u8bbf\u95ee\u3002<\/p>\n<\/p>\n
print(Person.get_species())  # \u8f93\u51fa: Homo sapiens<\/p>\n
person1 = Person("Alice", 30)<\/p>\n
print(person1.get_species())  # \u8f93\u51fa: Homo sapiens<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u9759\u6001\u65b9\u6cd5<\/h4>\n<\/p>\n
\u9759\u6001\u65b9\u6cd5\u662f\u4e0e\u7c7b\u76f8\u5173\u7684\u65b9\u6cd5\uff0c\u4f46\u4e0d\u8bbf\u95ee\u7c7b\u6216\u5b9e\u4f8b\u7684\u5c5e\u6027\u3002\u5b83\u4eec\u4f7f\u7528 @staticmethod<\/code> \u88c5\u9970\u5668\u5b9a\u4e49\uff0c\u4e0d\u9700\u8981 self<\/code> \u6216 cls<\/code> \u53c2\u6570\u3002<\/p>\n<\/p>\n
class Person:<\/p>\n
    species = "Homo sapiens"<\/p>\n
    def __init__(self, name, age):<\/p>\n
        self.name = name<\/p>\n
        self.age = age<\/p>\n
    @staticmethod<\/p>\n
    def is_adult(age):<\/p>\n
        return age >= 18<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cis_adult<\/code> \u662f\u4e00\u4e2a\u9759\u6001\u65b9\u6cd5\uff0c\u53ef\u4ee5\u901a\u8fc7\u7c7b\u540d\u548c\u5b9e\u4f8b\u540d\u8bbf\u95ee\u3002<\/p>\n<\/p>\n
print(Person.is_adult(20))  # \u8f93\u51fa: True<\/p>\n
person1 = Person("Alice", 30)<\/p>\n
print(person1.is_adult(16))  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
3\u3001\u5c5e\u6027\u65b9\u6cd5<\/h4>\n<\/p>\n
\u5c5e\u6027\u65b9\u6cd5\u4f7f\u7528 @property<\/code> \u88c5\u9970\u5668\u5b9a\u4e49\uff0c\u4f7f\u5f97\u65b9\u6cd5\u53ef\u4ee5\u50cf\u5c5e\u6027\u4e00\u6837\u8bbf\u95ee\u3002\u5b83\u4eec\u7528\u4e8e\u5b9a\u4e49\u53ea\u8bfb\u5c5e\u6027\u3002<\/p>\n<\/p>\n
class Person:<\/p>\n
    def __init__(self, name, age):<\/p>\n
        self.name = name<\/p>\n
        self.age = age<\/p>\n
    @property<\/p>\n
    def is_adult(self):<\/p>\n
        return self.age >= 18<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cis_adult<\/code> \u662f\u4e00\u4e2a\u5c5e\u6027\u65b9\u6cd5\uff0c\u53ef\u4ee5\u50cf\u5c5e\u6027\u4e00\u6837\u8bbf\u95ee\u3002<\/p>\n<\/p>\n
person1 = Person("Alice", 30)<\/p>\n
print(person1.is_adult)  # \u8f93\u51fa: True<\/p>\n
person2 = Person("Bob", 16)<\/p>\n
print(person2.is_adult)  # \u8f93\u51fa: False<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e94\u3001\u7ee7\u627f\u4e0e\u591a\u6001<\/h3>\n<\/p>\n
Python\u4e2d\u7684\u7c7b\u53ef\u4ee5\u901a\u8fc7\u7ee7\u627f\u548c\u591a\u6001\u5b9e\u73b0\u4ee3\u7801\u91cd\u7528\u548c\u6269\u5c55\u3002\u4ee5\u4e0b\u662f\u7ee7\u627f\u548c\u591a\u6001\u7684\u8be6\u7ec6\u4ecb\u7ecd\u548c\u793a\u4f8b\uff1a<\/p>\n<\/p>\n
1\u3001\u7ee7\u627f<\/h4>\n<\/p>\n
\u7ee7\u627f\u662f\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4e2d\u7684\u4e00\u4e2a\u91cd\u8981\u6982\u5ff5\uff0c\u5b83\u5141\u8bb8\u4e00\u4e2a\u7c7b\u7ee7\u627f\u53e6\u4e00\u4e2a\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u901a\u8fc7\u7ee7\u627f\uff0c\u6211\u4eec\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u65b0\u7684\u7c7b\uff0c\u800c\u65e0\u9700\u4ece\u5934\u5f00\u59cb\u7f16\u5199\u4ee3\u7801\u3002<\/p>\n<\/p>\n
class Person:<\/p>\n
    def __init__(self, name, age):<\/p>\n
        self.name = name<\/p>\n
        self.age = age<\/p>\n
    def introduce(self):<\/p>\n
        return f"My name is {self.name} and I am {self.age} years old."<\/p>\n
class Student(Person):<\/p>\n
    def __init__(self, name, age, student_id):<\/p>\n
        super().__init__(name, age)<\/p>\n
        self.student_id = student_id<\/p>\n
    def introduce(self):<\/p>\n
        return f"My name is {self.name}, I am {self.age} years old, and my student ID is {self.student_id}."<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cStudent<\/code> \u7c7b\u7ee7\u627f\u4e86 Person<\/code> \u7c7b\uff0c\u5e76\u6269\u5c55\u4e86 introduce<\/code> \u65b9\u6cd5\u3002<\/p>\n<\/p>\n
student1 = Student("Alice", 20, "S12345")<\/p>\n
print(student1.introduce())  # \u8f93\u51fa: My name is Alice, I am 20 years old, and my student ID is S12345.<\/p>\n
<\/code><\/pre>\n<\/p>\n
2\u3001\u591a\u6001<\/h4>\n<\/p>\n
\u591a\u6001\u662f\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u4e2d\u7684\u53e6\u4e00\u4e2a\u91cd\u8981\u6982\u5ff5\uff0c\u5b83\u5141\u8bb8\u4e0d\u540c\u7684\u7c7b\u5b9e\u73b0\u76f8\u540c\u7684\u65b9\u6cd5\u3002\u901a\u8fc7\u591a\u6001\uff0c\u6211\u4eec\u53ef\u4ee5\u7f16\u5199\u66f4\u901a\u7528\u7684\u4ee3\u7801\uff0c\u800c\u65e0\u9700\u5173\u5fc3\u5177\u4f53\u7684\u7c7b\u3002<\/p>\n<\/p>\n
class Person:<\/p>\n
    def introduce(self):<\/p>\n
        return "I am a person."<\/p>\n
class Student(Person):<\/p>\n
    def introduce(self):<\/p>\n
        return "I am a student."<\/p>\n
class Teacher(Person):<\/p>\n
    def introduce(self):<\/p>\n
        return "I am a teacher."<\/p>\n
def introduce_person(person):<\/p>\n
    print(person.introduce())<\/p>\n
person1 = Person()<\/p>\n
student1 = Student()<\/p>\n
teacher1 = Teacher()<\/p>\n
introduce_person(person1)  # \u8f93\u51fa: I am a person.<\/p>\n
introduce_person(student1)  # \u8f93\u51fa: I am a student.<\/p>\n
introduce_person(teacher1)  # \u8f93\u51fa: I am a teacher.<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u4e0a\u9762\u7684\u793a\u4f8b\u4e2d\uff0cintroduce_person<\/code> \u51fd\u6570\u63a5\u53d7\u4e00\u4e2a Person<\/code> \u5bf9\u8c61\uff0c\u5e76\u8c03\u7528\u5176 introduce<\/code> \u65b9\u6cd5\u3002\u65e0\u8bba\u4f20\u9012\u7684\u662f Person<\/code>\u3001Student<\/code> \u8fd8\u662f Teacher<\/code> \u5bf9\u8c61\uff0cintroduce_person<\/code> \u51fd\u6570\u90fd\u53ef\u4ee5\u6b63\u786e\u8c03\u7528\u76f8\u5e94\u7684\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u516d\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
\u901a\u8fc7\u4ee5\u4e0a\u5185\u5bb9\uff0c\u6211\u4eec\u8be6\u7ec6\u4ecb\u7ecd\u4e86Python\u4e2d\u5982\u4f55\u5b9a\u4e49\u7c7b\u7684\u53c2\u6570\uff0c\u5305\u62ec\u6784\u9020\u51fd\u6570\u53c2\u6570\u3001\u9ed8\u8ba4\u5c5e\u6027\u3001\u7c7b\u5c5e\u6027\u4e0e\u5b9e\u4f8b\u5c5e\u6027\uff0c\u4ee5\u53ca\u7c7b\u65b9\u6cd5\u3001\u9759\u6001\u65b9\u6cd5\u3001\u5c5e\u6027\u65b9\u6cd5\u3001\u7ee7\u627f\u4e0e\u591a\u6001\u7b49\u9ad8\u7ea7\u7279\u6027\u3002\u901a\u8fc7\u638c\u63e1\u8fd9\u4e9b\u77e5\u8bc6\uff0c\u6211\u4eec\u53ef\u4ee5\u66f4\u52a0\u7075\u6d3b\u5730\u5b9a\u4e49\u548c\u4f7f\u7528Python\u7c7b\uff0c\u4ece\u800c\u7f16\u5199\u66f4\u52a0\u9ad8\u6548\u3001\u53ef\u7ef4\u62a4\u7684\u4ee3\u7801\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5728Python\u4e2d\uff0c\u5982\u4f55\u4e3a\u7c7b\u5b9a\u4e49\u5c5e\u6027\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u53ef\u4ee5\u5728\u7c7b\u7684\u6784\u9020\u51fd\u6570\uff08__init__<\/code>\u65b9\u6cd5\uff09\u4e2d\u5b9a\u4e49\u5c5e\u6027\u3002\u4f7f\u7528self<\/code>\u5173\u952e\u5b57\u6765\u5c06\u53c2\u6570\u8d4b\u503c\u7ed9\u7c7b\u7684\u5c5e\u6027\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u901a\u8fc7self.attribute_name = parameter<\/code>\u7684\u65b9\u5f0f\u6765\u521b\u5efa\u5b9e\u4f8b\u5c5e\u6027\uff0c\u8fd9\u6837\u6bcf\u4e2a\u5bf9\u8c61\u90fd\u4f1a\u6709\u81ea\u5df1\u72ec\u7acb\u7684\u5c5e\u6027\u503c\u3002<\/p>\n
\u5982\u4f55\u5728Python\u7c7b\u4e2d\u4f7f\u7528\u9ed8\u8ba4\u53c2\u6570\uff1f<\/strong>
\u53ef\u4ee5\u5728\u5b9a\u4e49\u7c7b\u7684\u6784\u9020\u51fd\u6570\u65f6\u4e3a\u53c2\u6570\u8bbe\u7f6e\u9ed8\u8ba4\u503c\u3002\u5f53\u521b\u5efa\u5bf9\u8c61\u65f6\uff0c\u5982\u679c\u6ca1\u6709\u63d0\u4f9b\u8be5\u53c2\u6570\u7684\u503c\uff0c\u5c06\u4f1a\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002\u4f8b\u5982\uff0cdef __init__(self, param1, param2=default_value)<\/code>\u5141\u8bb8\u5728\u521b\u5efa\u5bf9\u8c61\u65f6\u7701\u7565param2<\/code>\uff0c\u5e76\u4f7f\u7528\u6307\u5b9a\u7684default_value<\/code>\u3002<\/p>\n
Python\u7c7b\u7684\u53c2\u6570\u53ef\u4ee5\u662f\u53ef\u53d8\u7c7b\u578b\u5417\uff1f<\/strong>
\u662f\u7684\uff0cPython\u7c7b\u7684\u53c2\u6570\u53ef\u4ee5\u662f\u53ef\u53d8\u7c7b\u578b\uff0c\u5982\u5217\u8868\u3001\u5b57\u5178\u6216\u96c6\u5408\u3002\u5728\u5b9a\u4e49\u7c7b\u65f6\uff0c\u53ef\u4ee5\u5c06\u8fd9\u4e9b\u53ef\u53d8\u7c7b\u578b\u4f5c\u4e3a\u53c2\u6570\u4f20\u9012\uff0c\u5e76\u5728\u7c7b\u7684\u5b9e\u4f8b\u4e2d\u8fdb\u884c\u4fee\u6539\u3002\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u4f7f\u7528\u53ef\u53d8\u7c7b\u578b\u4f5c\u4e3a\u9ed8\u8ba4\u53c2\u6570\u65f6\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u610f\u5916\u7684\u884c\u4e3a\uff0c\u5efa\u8bae\u4f7f\u7528None<\/code>\u4f5c\u4e3a\u9ed8\u8ba4\u503c\uff0c\u7136\u540e\u5728\u6784\u9020\u51fd\u6570\u4e2d\u8fdb\u884c\u521d\u59cb\u5316\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5b9a\u4e49\u7c7b\u7684\u53c2\u6570\u6709\u4e24\u79cd\u4e3b\u8981\u65b9\u6cd5\uff1a\u5728\u7c7b\u7684\u6784\u9020\u51fd\u6570\u4e2d\u5b9a\u4e49\u6784\u9020\u53c2\u6570\u3001\u5728\u7c7b\u7684\u5c5e\u6027\u4e2d\u5b9a\u4e49\u9ed8\u8ba4\u53c2\u6570\u3002\u6784\u9020\u51fd\u6570\u53c2\u6570\u3001\u9ed8\u8ba4\u5c5e\u6027\u3002 […]","protected":false},"author":3,"featured_media":1165888,"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\/1165882"}],"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=1165882"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1165882\/revisions"}],"predecessor-version":[{"id":1165890,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1165882\/revisions\/1165890"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1165888"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1165882"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1165882"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1165882"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}