{"id":411,"date":"2025-01-13T16:58:04","date_gmt":"2025-01-13T08:58:04","guid":{"rendered":"http:\/\/sqtcw.cn\/?p=411"},"modified":"2025-01-13T16:58:04","modified_gmt":"2025-01-13T08:58:04","slug":"python-%e4%b8%ad%e7%b1%bb%e7%9a%84%e6%9e%84%e9%80%a0%e5%87%bd%e6%95%b0__init__%e7%9a%84%e4%bd%9c%e7%94%a8","status":"publish","type":"post","link":"http:\/\/www.cnitw.com\/?p=411","title":{"rendered":"Python \u4e2d\u7c7b\u7684\u6784\u9020\u51fd\u6570`__init__`\u7684\u4f5c\u7528"},"content":{"rendered":"\n

\u4ee5\u4e0b\u662f\u53e6\u4e00\u4e2a\u5305\u542b\u4e0d\u540c\u52a8\u7269\u7c7b\u7684\u793a\u4f8b\uff1a<\/p>\n\n\n\n

class Dog:\n    species = \"Canis lupus familiaris\"\n\n    def __init__(self, name, age):\n        self.name = name\n        self.age = age\n\n    def make_sound(self):\n        return f\"{self.name} says Woof!\"\n\nclass Cat:\n    def __init__(self, name):\n        self.name = name\n\n    def make_sound(self):\n        return f\"{self.name} says Meow!\"\n\nclass Cow:\n    def __init__(self, name):\n        self.name = name\n\n    def make_sound(self):\n        return f\"{self.name} says Moo!\"\n\ndog1 = Dog(\"Buddy\", 3)\ncat1 = Cat(\"Whiskers\")\ncow1 = Cow(\"Daisy\")\n\nprint(dog1.make_sound())\nprint(cat1.make_sound())\nprint(cow1.make_sound())<\/code><\/pre>\n\n\n\n
\u8fd9\u91cc\u65b0\u589e\u4e86\u4e00\u4e2aCow<\/code>\u7c7b\uff0c\u4ee3\u8868\u5976\u725b\uff0c\u5b83\u4e5f\u6709\u81ea\u5df1\u72ec\u7279\u7684\u53d1\u51fa\u58f0\u97f3\u7684\u65b9\u6cd5\u5b9e\u73b0\u3002<\/p>\n\n\n\n
<\/p>\n\n\n\n
\u5728 Python \u4e2d\uff0c\u7c7b\u7684\u6784\u9020\u51fd\u6570__init__<\/code>\u6709\u4ee5\u4e0b\u91cd\u8981\u4f5c\u7528\uff1a<\/p>\n\n\n\n
    \n
  1. \u521d\u59cb\u5316\u5bf9\u8c61\uff1a<\/li>\n<\/ol>\n\n\n\n
      \n
    • \u5f53\u4e00\u4e2a\u7c7b\u7684\u5b9e\u4f8b\u88ab\u521b\u5efa\u65f6\uff0c__init__<\/code>\u65b9\u6cd5\u4f1a\u81ea\u52a8\u88ab\u8c03\u7528\u3002\u5b83\u7684\u4e3b\u8981\u4efb\u52a1\u662f\u5bf9\u65b0\u521b\u5efa\u7684\u5bf9\u8c61\u8fdb\u884c\u521d\u59cb\u5316\u64cd\u4f5c\uff0c\u8bbe\u7f6e\u5bf9\u8c61\u7684\u521d\u59cb\u72b6\u6001\u3002<\/li>\n\n\n\n
    • \u4f8b\u5982\uff0c\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0cDog<\/code>\u7c7b\u3001Cat<\/code>\u7c7b\u548cCow<\/code>\u7c7b\u7684__init__<\/code>\u65b9\u6cd5\u5206\u522b\u7528\u4e8e\u521d\u59cb\u5316\u72d7\u3001\u732b\u548c\u5976\u725b\u5bf9\u8c61\u7684\u5c5e\u6027\uff0c\u5982\u540d\u5b57\u548c\u5e74\u9f84\uff08\u5bf9\u4e8e\u72d7\u7c7b\uff09\u3002<\/li>\n<\/ul>\n\n\n\n
        \n
      1. \u63a5\u53d7\u53c2\u6570\uff1a<\/li>\n<\/ol>\n\n\n\n
          \n
        • __init__<\/code>\u65b9\u6cd5\u53ef\u4ee5\u63a5\u53d7\u53c2\u6570\uff0c\u8fd9\u4e9b\u53c2\u6570\u53ef\u4ee5\u5728\u521b\u5efa\u5bf9\u8c61\u65f6\u4f20\u9012\u3002\u8fd9\u4f7f\u5f97\u53ef\u4ee5\u6839\u636e\u4e0d\u540c\u7684\u8f93\u5165\u503c\u6765\u5b9a\u5236\u5bf9\u8c61\u7684\u521d\u59cb\u72b6\u6001\u3002<\/li>\n\n\n\n
        • \u6bd4\u5982\uff0cDog<\/code>\u7c7b\u7684__init__<\/code>\u65b9\u6cd5\u63a5\u53d7name<\/code>\u548cage<\/code>\u4e24\u4e2a\u53c2\u6570\uff0c\u8fd9\u6837\u5728\u521b\u5efa\u72d7\u5bf9\u8c61\u65f6\u53ef\u4ee5\u6307\u5b9a\u72d7\u7684\u540d\u5b57\u548c\u5e74\u9f84\u3002<\/li>\n<\/ul>\n\n\n\n
            \n
          1. \u5206\u914d\u5c5e\u6027\uff1a<\/li>\n<\/ol>\n\n\n\n
              \n
            • \u5728__init__<\/code>\u65b9\u6cd5\u5185\u90e8\uff0c\u53ef\u4ee5\u4f7f\u7528self<\/code>\u5173\u952e\u5b57\u6765\u4e3a\u5bf9\u8c61\u5206\u914d\u5c5e\u6027\u3002\u8fd9\u4e9b\u5c5e\u6027\u53ef\u4ee5\u5728\u7c7b\u7684\u5176\u4ed6\u65b9\u6cd5\u4e2d\u88ab\u8bbf\u95ee\u548c\u4fee\u6539\u3002<\/li>\n\n\n\n
            • \u4f8b\u5982\uff0c\u5728Dog<\/code>\u7c7b\u4e2d\uff0cself.name = name<\/code>\u548cself.age = age<\/code>\u5c06\u4f20\u5165\u7684\u53c2\u6570\u8d4b\u503c\u7ed9\u5bf9\u8c61\u7684\u5c5e\u6027\uff0c\u4f7f\u5f97\u53ef\u4ee5\u901a\u8fc7dog1.name<\/code>\u548cdog1.age<\/code>\u6765\u8bbf\u95ee\u72d7\u5bf9\u8c61\u7684\u540d\u5b57\u548c\u5e74\u9f84\u5c5e\u6027\u3002<\/li>\n<\/ul>\n\n\n\n
              \u603b\u4e4b\uff0c\u6784\u9020\u51fd\u6570__init__<\/code>\u5728 Python \u7c7b\u4e2d\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u5b83\u786e\u4fdd\u4e86\u5bf9\u8c61\u5728\u521b\u5efa\u65f6\u88ab\u6b63\u786e\u5730\u521d\u59cb\u5316\uff0c\u4e3a\u540e\u7eed\u7684\u64cd\u4f5c\u63d0\u4f9b\u4e86\u4e00\u4e2a\u826f\u597d\u7684\u8d77\u70b9\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
              \u4ee5\u4e0b\u662f\u53e6\u4e00\u4e2a\u5305\u542b\u4e0d\u540c\u52a8\u7269\u7c7b\u7684\u793a\u4f8b\uff1a \u8fd9\u91cc\u65b0\u589e\u4e86\u4e00\u4e2aCow\u7c7b\uff0c\u4ee3\u8868\u5976\u725b\uff0c\u5b83\u4e5f\u6709\u81ea\u5df1\u72ec\u7279\u7684\u53d1\u51fa\u58f0\u97f3\u7684\u65b9\u6cd5\u5b9e\u73b0\u3002 \u5728 Python \u4e2d\uff0c\u7c7b\u7684\u6784\u9020\u51fd\u6570__init__\u6709\u4ee5\u4e0b\u91cd\u8981\u4f5c\u7528\uff1a \u603b\u4e4b\uff0c\u6784\u9020\u51fd\u6570__init__\u5728 Python \u7c7b\u4e2d\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\uff0c\u5b83\u786e\u4fdd\u4e86\u5bf9\u8c61\u5728\u521b\u5efa\u65f6\u88ab\u6b63\u786e\u5730\u521d\u59cb\u5316\uff0c\u4e3a\u540e\u7eed\u7684\u64cd\u4f5c\u63d0\u4f9b\u4e86\u4e00\u4e2a\u826f\u597d\u7684\u8d77\u70b9\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8,16],"tags":[],"class_list":["post-411","post","type-post","status-publish","format-standard","hentry","category-python","category-16"],"_links":{"self":[{"href":"http:\/\/www.cnitw.com\/index.php?rest_route=\/wp\/v2\/posts\/411","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.cnitw.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.cnitw.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.cnitw.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.cnitw.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=411"}],"version-history":[{"count":0,"href":"http:\/\/www.cnitw.com\/index.php?rest_route=\/wp\/v2\/posts\/411\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.cnitw.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=411"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.cnitw.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=411"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.cnitw.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=411"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}