{"id":935642,"date":"2024-12-26T18:57:08","date_gmt":"2024-12-26T10:57:08","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/935642.html"},"modified":"2024-12-26T18:57:11","modified_gmt":"2024-12-26T10:57:11","slug":"%e5%a6%82%e4%bd%95%e8%b0%83%e7%94%a8%e7%b1%bbpython","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/935642.html","title":{"rendered":"\u5982\u4f55\u8c03\u7528\u7c7bpython"},"content":{"rendered":"

\"\u5982\u4f55\u8c03\u7528\u7c7bpython\"<\/p>\n

\u5728Python\u4e2d\u8c03\u7528\u7c7b\u7684\u65b9\u6cd5\u6709\u4ee5\u4e0b\u51e0\u79cd\uff1a\u521b\u5efa\u7c7b\u5b9e\u4f8b\u3001\u8bbf\u95ee\u7c7b\u5c5e\u6027\u3001\u8c03\u7528\u7c7b\u65b9\u6cd5\u3001\u7ee7\u627f\u7c7b\u3002\u521b\u5efa\u7c7b\u5b9e\u4f8b\uff1a\u9996\u5148\u9700\u8981\u5b9a\u4e49\u4e00\u4e2a\u7c7b\uff0c\u7136\u540e\u901a\u8fc7\u7c7b\u540d\u52a0\u62ec\u53f7\u7684\u65b9\u5f0f\u521b\u5efa\u7c7b\u5b9e\u4f8b\u3002\u8bbf\u95ee\u7c7b\u5c5e\u6027\uff1a\u901a\u8fc7\u5b9e\u4f8b\u540d\u52a0\u70b9\u53f7\u6765\u8bbf\u95ee\u7c7b\u4e2d\u7684\u5c5e\u6027\u3002\u8c03\u7528\u7c7b\u65b9\u6cd5\uff1a\u901a\u8fc7\u5b9e\u4f8b\u540d\u52a0\u70b9\u53f7\u6765\u8c03\u7528\u7c7b\u4e2d\u7684\u65b9\u6cd5\u3002\u7ee7\u627f\u7c7b\uff1a\u5b9a\u4e49\u4e00\u4e2a\u65b0\u7684\u7c7b\u5e76\u5728\u62ec\u53f7\u4e2d\u6307\u5b9a\u8981\u7ee7\u627f\u7684\u7236\u7c7b\u3002<\/strong>\u63a5\u4e0b\u6765\uff0c\u6211\u5c06\u8be6\u7ec6\u63cf\u8ff0\u5176\u4e2d\u7684\u4e00\u79cd\u65b9\u6cd5\u2014\u2014\u521b\u5efa\u7c7b\u5b9e\u4f8b\u3002<\/p>\n<\/p>\n

\u521b\u5efa\u7c7b\u5b9e\u4f8b\u662f\u4f7f\u7528\u7c7b\u7684\u6700\u57fa\u672c\u65b9\u5f0f\uff0c\u9996\u5148\u9700\u8981\u5b9a\u4e49\u4e00\u4e2a\u7c7b\u3002\u5b9a\u4e49\u7c7b\u7684\u8bed\u6cd5\u662f\u4f7f\u7528\u5173\u952e\u5b57class<\/code>\uff0c\u540e\u8ddf\u7c7b\u540d\u548c\u5192\u53f7\u3002\u5728\u7c7b\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u5b9a\u4e49\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u5c5e\u6027\u7528\u4e8e\u5b58\u50a8\u5bf9\u8c61\u7684\u72b6\u6001\uff0c\u800c\u65b9\u6cd5\u5219\u7528\u4e8e\u5b9a\u4e49\u5bf9\u8c61\u7684\u884c\u4e3a\u3002\u5b9a\u4e49\u7c7b\u4e4b\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u901a\u8fc7\u7c7b\u540d\u52a0\u62ec\u53f7\u7684\u65b9\u5f0f\u6765\u521b\u5efa\u7c7b\u7684\u5b9e\u4f8b\u3002\u4f8b\u5982\uff0c\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u540d\u4e3aCar<\/code>\u7684\u7c7b\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7my_car = Car()<\/code>\u6765\u521b\u5efa\u4e00\u4e2aCar<\/code>\u7c7b\u7684\u5b9e\u4f8bmy_car<\/code>\u3002\u901a\u8fc7\u521b\u5efa\u7c7b\u5b9e\u4f8b\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u7c7b\u4e2d\u5b9a\u4e49\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/p>\n<\/p>\n

\u4e00\u3001\u521b\u5efa\u7c7b\u4e0e\u5b9e\u4f8b<\/h3>\n<\/p>\n

\u5728Python\u4e2d\uff0c\u7c7b\u662f\u521b\u5efa\u5bf9\u8c61\u7684\u84dd\u56fe\u3002\u7c7b\u5b9a\u4e49\u4e86\u5bf9\u8c61\u7684\u5c5e\u6027\u548c\u884c\u4e3a\uff0c\u5b9e\u4f8b\u5316\u7c7b\u5219\u662f\u521b\u5efa\u7c7b\u7684\u5177\u4f53\u5bf9\u8c61\u3002<\/p>\n<\/p>\n

1. \u5b9a\u4e49\u7c7b<\/h4>\n<\/p>\n

\u5728Python\u4e2d\uff0c\u5b9a\u4e49\u7c7b\u4f7f\u7528class<\/code>\u5173\u952e\u5b57\u3002\u7c7b\u540d\u901a\u5e38\u4f7f\u7528\u5927\u5199\u5b57\u6bcd\u5f00\u5934\uff0c\u4ee5\u4fbf\u4e0e\u53d8\u91cf\u540d\u533a\u5206\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n

class Car:<\/p>\n
    pass<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e0a\u9762\u7684\u4ee3\u7801\u5b9a\u4e49\u4e86\u4e00\u4e2a\u540d\u4e3aCar<\/code>\u7684\u7c7b\uff0c\u6682\u65f6\u6ca1\u6709\u4efb\u4f55\u5c5e\u6027\u548c\u65b9\u6cd5\u3002\u53ef\u4ee5\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u7c7b\uff0c\u7136\u540e\u9010\u6b65\u6dfb\u52a0\u529f\u80fd\u3002<\/p>\n<\/p>\n
2. \u521d\u59cb\u5316\u65b9\u6cd5<\/h4>\n<\/p>\n
\u7c7b\u901a\u5e38\u5305\u542b\u4e00\u4e2a\u7279\u6b8a\u7684\u65b9\u6cd5__init__<\/code>\uff0c\u7528\u4e8e\u521d\u59cb\u5316\u5bf9\u8c61\u7684\u5c5e\u6027\u3002__init__<\/code>\u65b9\u6cd5\u5728\u521b\u5efa\u5bf9\u8c61\u65f6\u81ea\u52a8\u8c03\u7528\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
class Car:<\/p>\n
    def __init__(self, make, model, year):<\/p>\n
        self.make = make<\/p>\n
        self.model = model<\/p>\n
        self.year = year<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cCar<\/code>\u7c7b\u5305\u542b\u4e09\u4e2a\u5c5e\u6027\uff1amake<\/code>\u3001model<\/code>\u548cyear<\/code>\uff0c\u8fd9\u4e9b\u5c5e\u6027\u5728\u521b\u5efa\u5bf9\u8c61\u65f6\u521d\u59cb\u5316\u3002<\/p>\n<\/p>\n
3. \u521b\u5efa\u5b9e\u4f8b<\/h4>\n<\/p>\n
\u4e00\u65e6\u5b9a\u4e49\u4e86\u7c7b\uff0c\u53ef\u4ee5\u901a\u8fc7\u7c7b\u540d\u52a0\u62ec\u53f7\u7684\u65b9\u5f0f\u521b\u5efa\u7c7b\u7684\u5b9e\u4f8b\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
my_car = Car('Toyota', 'Corolla', 2020)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u8fd9\u884c\u4ee3\u7801\u521b\u5efa\u4e86\u4e00\u4e2aCar<\/code>\u5bf9\u8c61my_car<\/code>\uff0c\u5e76\u521d\u59cb\u5316\u5176\u5c5e\u6027\u4e3a'Toyota'\u3001'Corolla'\u548c2020\u3002<\/p>\n<\/p>\n
\u4e8c\u3001\u8bbf\u95ee\u7c7b\u5c5e\u6027\u4e0e\u65b9\u6cd5<\/h3>\n<\/p>\n
\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u5b9a\u4e49\u4e86\u5bf9\u8c61\u7684\u72b6\u6001\u548c\u884c\u4e3a\u3002\u901a\u8fc7\u5b9e\u4f8b\uff0c\u53ef\u4ee5\u8bbf\u95ee\u548c\u4fee\u6539\u8fd9\u4e9b\u5c5e\u6027\uff0c\u5e76\u8c03\u7528\u65b9\u6cd5\u6267\u884c\u67d0\u4e9b\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
1. \u8bbf\u95ee\u5c5e\u6027<\/h4>\n<\/p>\n
\u901a\u8fc7\u5b9e\u4f8b\u540d\u52a0\u70b9\u53f7\u7684\u65b9\u5f0f\uff0c\u53ef\u4ee5\u8bbf\u95ee\u5bf9\u8c61\u7684\u5c5e\u6027\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
print(my_car.make)  # \u8f93\u51fa: Toyota<\/p>\n
print(my_car.model)  # \u8f93\u51fa: Corolla<\/p>\n
print(my_car.year)  # \u8f93\u51fa: 2020<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u8fd9\u79cd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u83b7\u53d6\u5bf9\u8c61\u7684\u5c5e\u6027\u503c\u3002<\/p>\n<\/p>\n
2. \u4fee\u6539\u5c5e\u6027<\/h4>\n<\/p>\n
\u4e5f\u53ef\u4ee5\u901a\u8fc7\u5b9e\u4f8b\u540d\u52a0\u70b9\u53f7\u7684\u65b9\u5f0f\u4fee\u6539\u5bf9\u8c61\u7684\u5c5e\u6027\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
my_car.year = 2021<\/p>\n
print(my_car.year)  # \u8f93\u51fa: 2021<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4fee\u6539\u5bf9\u8c61\u5c5e\u6027\u540e\uff0c\u8be5\u5bf9\u8c61\u7684\u72b6\u6001\u4e5f\u968f\u4e4b\u6539\u53d8\u3002<\/p>\n<\/p>\n
3. \u8c03\u7528\u65b9\u6cd5<\/h4>\n<\/p>\n
\u7c7b\u4e2d\u7684\u65b9\u6cd5\u5b9a\u4e49\u4e86\u5bf9\u8c61\u7684\u884c\u4e3a\uff0c\u53ef\u4ee5\u901a\u8fc7\u5b9e\u4f8b\u540d\u52a0\u70b9\u53f7\u7684\u65b9\u5f0f\u8c03\u7528\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
class Car:<\/p>\n
    def __init__(self, make, model, year):<\/p>\n
        self.make = make<\/p>\n
        self.model = model<\/p>\n
        self.year = year<\/p>\n
    def describe(self):<\/p>\n
        print(f'{self.year} {self.make} {self.model}')<\/p>\n
my_car = Car('Toyota', 'Corolla', 2020)<\/p>\n
my_car.describe()  # \u8f93\u51fa: 2020 Toyota Corolla<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cdescribe<\/code>\u65b9\u6cd5\u8f93\u51fa\u5bf9\u8c61\u7684\u8be6\u7ec6\u4fe1\u606f\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u7ee7\u627f\u4e0e\u591a\u6001<\/h3>\n<\/p>\n
\u7ee7\u627f\u548c\u591a\u6001\u662f\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u7684\u91cd\u8981\u6982\u5ff5\u3002\u901a\u8fc7\u7ee7\u627f\uff0c\u53ef\u4ee5\u521b\u5efa\u4e00\u4e2a\u65b0\u7c7b\uff0c\u8be5\u7c7b\u7ee7\u627f\u53e6\u4e00\u4e2a\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
1. \u5b9a\u4e49\u5b50\u7c7b<\/h4>\n<\/p>\n
\u5b9a\u4e49\u5b50\u7c7b\u65f6\uff0c\u9700\u8981\u5728\u7c7b\u540d\u540e\u7684\u62ec\u53f7\u4e2d\u6307\u5b9a\u8981\u7ee7\u627f\u7684\u7236\u7c7b\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
class ElectricCar(Car):<\/p>\n
    def __init__(self, make, model, year, battery_size):<\/p>\n
        super().__init__(make, model, year)<\/p>\n
        self.battery_size = battery_size<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cElectricCar<\/code>\u662fCar<\/code>\u7684\u5b50\u7c7b\uff0c\u7ee7\u627f\u4e86Car<\/code>\u7c7b\u7684\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u5e76\u6dfb\u52a0\u4e86\u4e00\u4e2a\u65b0\u7684\u5c5e\u6027battery_size<\/code>\u3002<\/p>\n<\/p>\n
2. \u4f7f\u7528\u591a\u6001<\/h4>\n<\/p>\n
\u591a\u6001\u5141\u8bb8\u5b50\u7c7b\u91cd\u5199\u7236\u7c7b\u7684\u65b9\u6cd5\uff0c\u4ece\u800c\u5728\u4e0d\u540c\u7c7b\u4e2d\u5177\u6709\u4e0d\u540c\u7684\u884c\u4e3a\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
class ElectricCar(Car):<\/p>\n
    def __init__(self, make, model, year, battery_size):<\/p>\n
        super().__init__(make, model, year)<\/p>\n
        self.battery_size = battery_size<\/p>\n
    def describe(self):<\/p>\n
        print(f'{self.year} {self.make} {self.model} with {self.battery_size}-kWh battery')<\/p>\n
my_electric_car = ElectricCar('Tesla', 'Model S', 2021, 100)<\/p>\n
my_electric_car.describe()  # \u8f93\u51fa: 2021 Tesla Model S with 100-kWh battery<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cElectricCar<\/code>\u91cd\u5199\u4e86Car<\/code>\u7c7b\u7684describe<\/code>\u65b9\u6cd5\uff0c\u4ee5\u63d0\u4f9b\u4e0d\u540c\u7684\u8f93\u51fa\u3002<\/p>\n<\/p>\n
\u56db\u3001\u7c7b\u7684\u9ad8\u7ea7\u7279\u6027<\/h3>\n<\/p>\n
Python\u4e2d\u7c7b\u7684\u9ad8\u7ea7\u7279\u6027\u5305\u62ec\u7c7b\u5c5e\u6027\u3001\u9759\u6001\u65b9\u6cd5\u3001\u7c7b\u65b9\u6cd5\u7b49\u3002\u8fd9\u4e9b\u7279\u6027\u63d0\u4f9b\u4e86\u66f4\u591a\u7684\u7075\u6d3b\u6027\u548c\u529f\u80fd\u3002<\/p>\n<\/p>\n
1. \u7c7b\u5c5e\u6027<\/h4>\n<\/p>\n
\u7c7b\u5c5e\u6027\u662f\u7c7b\u7ea7\u522b\u7684\u5c5e\u6027\uff0c\u800c\u4e0d\u662f\u5b9e\u4f8b\u7ea7\u522b\u7684\u3002\u5b83\u4eec\u5728\u6240\u6709\u5b9e\u4f8b\u4e2d\u5171\u4eab\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
class Car:<\/p>\n
    wheels = 4  # \u7c7b\u5c5e\u6027<\/p>\n
    def __init__(self, make, model, year):<\/p>\n
        self.make = make<\/p>\n
        self.model = model<\/p>\n
        self.year = year<\/p>\n
print(Car.wheels)  # \u8f93\u51fa: 4<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u7c7b\u5c5e\u6027\u53ef\u4ee5\u901a\u8fc7\u7c7b\u540d\u8bbf\u95ee\uff0c\u4e5f\u53ef\u4ee5\u901a\u8fc7\u5b9e\u4f8b\u8bbf\u95ee\u3002<\/p>\n<\/p>\n
2. \u9759\u6001\u65b9\u6cd5<\/h4>\n<\/p>\n
\u9759\u6001\u65b9\u6cd5\u4f7f\u7528@staticmethod<\/code>\u88c5\u9970\u5668\u5b9a\u4e49\uff0c\u4e0d\u9700\u8981\u8bbf\u95ee\u5b9e\u4f8b\u6216\u7c7b\u5c5e\u6027\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
class Car:<\/p>\n
    @staticmethod<\/p>\n
    def honk():<\/p>\n
        print('Beep beep!')<\/p>\n
Car.honk()  # \u8f93\u51fa: Beep beep!<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u9759\u6001\u65b9\u6cd5\u901a\u5e38\u7528\u4e8e\u5b9a\u4e49\u4e0d\u9700\u8981\u8bbf\u95ee\u5b9e\u4f8b\u6216\u7c7b\u7684\u51fd\u6570\u3002<\/p>\n<\/p>\n
3. \u7c7b\u65b9\u6cd5<\/h4>\n<\/p>\n
\u7c7b\u65b9\u6cd5\u4f7f\u7528@classmethod<\/code>\u88c5\u9970\u5668\u5b9a\u4e49\uff0c\u63a5\u6536\u7c7b\u4f5c\u4e3a\u53c2\u6570\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
class Car:<\/p>\n
    wheels = 4<\/p>\n
    @classmethod<\/p>\n
    def change_wheels(cls, wheels):<\/p>\n
        cls.wheels = wheels<\/p>\n
Car.change_wheels(6)<\/p>\n
print(Car.wheels)  # \u8f93\u51fa: 6<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u7c7b\u65b9\u6cd5\u901a\u5e38\u7528\u4e8e\u4fee\u6539\u7c7b\u5c5e\u6027\u6216\u5b9e\u73b0\u5de5\u5382\u65b9\u6cd5\u3002<\/p>\n<\/p>\n
\u4e94\u3001\u7c7b\u7684\u5c01\u88c5\u4e0e\u79c1\u6709\u5c5e\u6027<\/h3>\n<\/p>\n
\u5c01\u88c5\u662f\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u7684\u57fa\u672c\u539f\u5219\u4e4b\u4e00\uff0c\u65e8\u5728\u4fdd\u62a4\u5bf9\u8c61\u7684\u5185\u90e8\u72b6\u6001\u4e0d\u88ab\u5916\u90e8\u76f4\u63a5\u8bbf\u95ee\u3002<\/p>\n<\/p>\n
1. \u79c1\u6709\u5c5e\u6027<\/h4>\n<\/p>\n
\u5728Python\u4e2d\uff0c\u901a\u8fc7\u5728\u5c5e\u6027\u540d\u524d\u52a0\u4e0b\u5212\u7ebf\u6765\u8868\u793a\u79c1\u6709\u5c5e\u6027\uff0c\u5efa\u8bae\u4e0d\u76f4\u63a5\u8bbf\u95ee\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
class Car:<\/p>\n
    def __init__(self, make, model, year):<\/p>\n
        self._make = make  # \u79c1\u6709\u5c5e\u6027<\/p>\n
        self._model = model<\/p>\n
        self._year = year<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u867d\u7136Python\u6ca1\u6709\u771f\u6b63\u7684\u79c1\u6709\u5c5e\u6027\u673a\u5236\uff0c\u4f46\u8fd9\u79cd\u547d\u540d\u7ea6\u5b9a\u8868\u793a\u5c5e\u6027\u662f\u79c1\u6709\u7684\u3002<\/p>\n<\/p>\n
2. \u4f7f\u7528getter\u548csetter<\/h4>\n<\/p>\n
\u53ef\u4ee5\u901a\u8fc7\u5b9a\u4e49getter\u548csetter\u65b9\u6cd5\u6765\u8bbf\u95ee\u548c\u4fee\u6539\u79c1\u6709\u5c5e\u6027\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
class Car:<\/p>\n
    def __init__(self, make, model, year):<\/p>\n
        self._make = make<\/p>\n
        self._model = model<\/p>\n
        self._year = year<\/p>\n
    def get_make(self):<\/p>\n
        return self._make<\/p>\n
    def set_make(self, make):<\/p>\n
        self._make = make<\/p>\n
my_car = Car('Toyota', 'Corolla', 2020)<\/p>\n
print(my_car.get_make())  # \u8f93\u51fa: Toyota<\/p>\n
my_car.set_make('Honda')<\/p>\n
print(my_car.get_make())  # \u8f93\u51fa: Honda<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7getter\u548csetter\u65b9\u6cd5\uff0c\u53ef\u4ee5\u66f4\u597d\u5730\u63a7\u5236\u5c5e\u6027\u7684\u8bbf\u95ee\u548c\u4fee\u6539\u3002<\/p>\n<\/p>\n
\u516d\u3001\u8fd0\u7b97\u7b26\u91cd\u8f7d\u4e0e\u9b54\u6cd5\u65b9\u6cd5<\/h3>\n<\/p>\n
Python\u63d0\u4f9b\u4e86\u591a\u79cd\u9b54\u6cd5\u65b9\u6cd5\uff0c\u7528\u4e8e\u5b9e\u73b0\u8fd0\u7b97\u7b26\u91cd\u8f7d\u548c\u5176\u4ed6\u7279\u6b8a\u884c\u4e3a\u3002<\/p>\n<\/p>\n
1. \u8fd0\u7b97\u7b26\u91cd\u8f7d<\/h4>\n<\/p>\n
\u8fd0\u7b97\u7b26\u91cd\u8f7d\u5141\u8bb8\u91cd\u5b9a\u4e49\u8fd0\u7b97\u7b26\u7684\u884c\u4e3a\u3002\u4f8b\u5982\uff1a<\/p>\n<\/p>\n
class Vector:<\/p>\n
    def __init__(self, x, y):<\/p>\n
        self.x = x<\/p>\n
        self.y = y<\/p>\n
    def __add__(self, other):<\/p>\n
        return Vector(self.x + other.x, self.y + other.y)<\/p>\n
v1 = Vector(1, 2)<\/p>\n
v2 = Vector(3, 4)<\/p>\n
v3 = v1 + v2<\/p>\n
print(v3.x, v3.y)  # \u8f93\u51fa: 4 6<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c\u91cd\u8f7d\u4e86+<\/code>\u8fd0\u7b97\u7b26\uff0c\u4f7f\u4e4b\u80fd\u591f\u5bf9Vector<\/code>\u5bf9\u8c61\u8fdb\u884c\u52a0\u6cd5\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
2. \u9b54\u6cd5\u65b9\u6cd5<\/h4>\n<\/p>\n
\u9b54\u6cd5\u65b9\u6cd5\u662f\u4ee5\u53cc\u4e0b\u5212\u7ebf\u5f00\u5934\u548c\u7ed3\u5c3e\u7684\u65b9\u6cd5\uff0c\u7528\u4e8e\u5b9e\u73b0\u7279\u6b8a\u529f\u80fd\u3002\u4f8b\u5982\uff0c__str__<\/code>\u65b9\u6cd5\u7528\u4e8e\u5b9a\u4e49\u5bf9\u8c61\u7684\u5b57\u7b26\u4e32\u8868\u793a\uff1a<\/p>\n<\/p>\n
class Car:<\/p>\n
    def __init__(self, make, model, year):<\/p>\n
        self.make = make<\/p>\n
        self.model = model<\/p>\n
        self.year = year<\/p>\n
    def __str__(self):<\/p>\n
        return f'{self.year} {self.make} {self.model}'<\/p>\n
my_car = Car('Toyota', 'Corolla', 2020)<\/p>\n
print(my_car)  # \u8f93\u51fa: 2020 Toyota Corolla<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u5b9a\u4e49__str__<\/code>\u65b9\u6cd5\uff0c\u53ef\u4ee5\u81ea\u5b9a\u4e49\u5bf9\u8c61\u7684\u6253\u5370\u8f93\u51fa\u3002<\/p>\n<\/p>\n
\u4e03\u3001\u603b\u7ed3<\/h3>\n<\/p>\n
\u5728Python\u4e2d\uff0c\u7c7b\u548c\u5bf9\u8c61\u662f\u9762\u5411\u5bf9\u8c61\u7f16\u7a0b\u7684\u6838\u5fc3\u3002\u901a\u8fc7\u5b9a\u4e49\u7c7b\u3001\u521b\u5efa\u5b9e\u4f8b\u3001\u8bbf\u95ee\u5c5e\u6027\u548c\u65b9\u6cd5\uff0c\u53ef\u4ee5\u8f7b\u677e\u5b9e\u73b0\u5bf9\u8c61\u7684\u72b6\u6001\u548c\u884c\u4e3a\u7ba1\u7406\u3002\u7ee7\u627f\u3001\u591a\u6001\u3001\u5c01\u88c5\u7b49\u7279\u6027\u63d0\u4f9b\u4e86\u5f3a\u5927\u7684\u529f\u80fd\u548c\u7075\u6d3b\u6027\uff0c\u800c\u8fd0\u7b97\u7b26\u91cd\u8f7d\u548c\u9b54\u6cd5\u65b9\u6cd5\u5219\u4e3a\u5b9a\u5236\u5bf9\u8c61\u884c\u4e3a\u63d0\u4f9b\u4e86\u66f4\u591a\u53ef\u80fd\u6027\u3002\u638c\u63e1\u8fd9\u4e9b\u6982\u5ff5\u548c\u6280\u5de7\uff0c\u5c06\u6781\u5927\u5730\u63d0\u5347Python\u7f16\u7a0b\u7684\u80fd\u529b\u548c\u6548\u7387\u3002<\/p>\n<\/p>\n
\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n
 \u5982\u4f55\u5728Python\u4e2d\u521b\u5efa\u548c\u4f7f\u7528\u7c7b\uff1f<\/strong>
\u5728Python\u4e2d\uff0c\u7c7b\u7684\u521b\u5efa\u901a\u5e38\u901a\u8fc7class<\/code>\u5173\u952e\u5b57\u6765\u5b9e\u73b0\u3002\u5b9a\u4e49\u7c7b\u540e\uff0c\u53ef\u4ee5\u521b\u5efa\u7c7b\u7684\u5b9e\u4f8b\uff0c\u5e76\u901a\u8fc7\u5b9e\u4f8b\u8c03\u7528\u7c7b\u7684\u65b9\u6cd5\u548c\u5c5e\u6027\u3002\u793a\u4f8b\u4ee3\u7801\u5982\u4e0b\uff1a  <\/p>\n
class Dog:\n    def bark(self):\n        return "Woof!"\n\nmy_dog = Dog()\nprint(my_dog.bark())  # \u8f93\u51fa: Woof!\n<\/code><\/pre>\n
\u8c03\u7528\u7c7b\u4e2d\u7684\u65b9\u6cd5\u65f6\u9700\u8981\u6ce8\u610f\u4ec0\u4e48\uff1f<\/strong>
\u5728\u8c03\u7528\u7c7b\u4e2d\u7684\u65b9\u6cd5\u65f6\uff0c\u786e\u4fdd\u5b9e\u4f8b\u5df2\u7ecf\u521b\u5efa\u5e76\u4e14\u65b9\u6cd5\u7684\u53c2\u6570\u6b63\u786e\u3002\u82e5\u65b9\u6cd5\u9700\u8981\u53c2\u6570\uff0c\u8c03\u7528\u65f6\u9700\u8981\u63d0\u4f9b\u76f8\u5e94\u7684\u503c\u3002\u4f8b\u5982\uff1a  <\/p>\n
class Calculator:\n    def add(self, a, b):\n        return a + b\n\ncalc = Calculator()\nresult = calc.add(5, 3)  # \u8f93\u51fa: 8\n<\/code><\/pre>\n
\u5982\u4f55\u5728Python\u4e2d\u5b9e\u73b0\u7c7b\u7684\u7ee7\u627f\uff1f<\/strong>
\u7c7b\u7684\u7ee7\u627f\u5141\u8bb8\u65b0\u7c7b\u57fa\u4e8e\u5df2\u6709\u7c7b\u521b\u5efa\uff0c\u5e76\u53ef\u4ee5\u91cd\u7528\u6216\u6269\u5c55\u5176\u529f\u80fd\u3002\u53ef\u4ee5\u901a\u8fc7\u5728\u7c7b\u5b9a\u4e49\u4e2d\u6307\u5b9a\u7236\u7c7b\u6765\u5b9e\u73b0\u7ee7\u627f\u3002\u793a\u4f8b\u4ee3\u7801\uff1a  <\/p>\n
class Animal:\n    def speak(self):\n        return "Animal sound"\n\nclass Cat(Animal):\n    def speak(self):\n        return "Meow"\n\nmy_cat = Cat()\nprint(my_cat.speak())  # \u8f93\u51fa: Meow\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"\u5728Python\u4e2d\u8c03\u7528\u7c7b\u7684\u65b9\u6cd5\u6709\u4ee5\u4e0b\u51e0\u79cd\uff1a\u521b\u5efa\u7c7b\u5b9e\u4f8b\u3001\u8bbf\u95ee\u7c7b\u5c5e\u6027\u3001\u8c03\u7528\u7c7b\u65b9\u6cd5\u3001\u7ee7\u627f\u7c7b\u3002\u521b\u5efa\u7c7b\u5b9e\u4f8b\uff1a\u9996\u5148\u9700\u8981\u5b9a\u4e49\u4e00 […]","protected":false},"author":3,"featured_media":935648,"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\/935642"}],"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=935642"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/935642\/revisions"}],"predecessor-version":[{"id":935650,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/935642\/revisions\/935650"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/935648"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=935642"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=935642"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=935642"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}