{"id":3180,"date":"2025-05-31T16:19:51","date_gmt":"2025-06-04T08:41:50","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3180"},"modified":"2025-06-04T16:19:51","modified_gmt":"2025-06-04T08:41:50","slug":"%e5%ad%b8%e7%bf%92python%e4%b8%ad%e7%9a%84class%e5%87%bd%e6%95%b8","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/python\/%e5%ad%b8%e7%bf%92python%e4%b8%ad%e7%9a%84class%e5%87%bd%e6%95%b8\/","title":{"rendered":"2025 \u6700\u65b0 Python Class \u51fd\u6578\u5b8c\u5168\u6559\u7a0b\uff1a\u5b78\u6703\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08"},"content":{"rendered":"

<\/p>\n

Python \u4e2d\u7684 Class<\/h1>\n

Python \u4e2d\u7684 Class \u662f\u4e00\u7a2e\u5c01\u88dd\u65b9\u5f0f\uff0c\u53ef\u4ee5\u5c07\u4e00\u7d44\u76f8\u95dc\u7684\u8b8a\u6578\u548c\u51fd\u5f0f\u7d44\u5408\u5728\u4e00\u8d77\uff0c\u5f62\u6210\u4e00\u500b\u985e\u5225\u3002\u5229\u7528 Class\uff0c\u958b\u767c\u8005\u53ef\u4ee5\u66f4\u5bb9\u6613\u5730\u7ba1\u7406\u8907\u96dc\u7684\u7a0b\u5f0f\u78bc\uff0c\u4e26\u63d0\u9ad8\u53ef\u8b80\u6027\u8207\u7dad\u8b77\u6027\u3002\u672c\u6587\u5c07\u4ecb\u7d39 Python \u4e2d Class \u7684\u5b9a\u7fa9\u3001\u4f7f\u7528\u65b9\u6cd5\u4ee5\u53ca\u6700\u4f73\u5be6\u8e10\uff0c\u8b93\u4f60\u80fd\u5920\u9748\u6d3b\u904b\u7528\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\u7684\u7406\u5ff5\u3002<\/p>\n

\u4ec0\u9ebc\u662f Class\uff1f<\/h2>\n

Class \u662f\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\u4e2d\u7684\u4e00\u500b\u91cd\u8981\u6982\u5ff5\uff0c\u5b83\u5141\u8a31\u5c07\u6578\u64da\u548c\u884c\u70ba\uff08\u5373\u65b9\u6cd5\uff09\u5c01\u88dd\u5728\u4e00\u8d77\u3002\u4e00\u500b Class \u53ef\u4ee5\u7528\u4f86\u5275\u5efa\u591a\u500b\u7269\u4ef6\uff0c\u9019\u4e9b\u7269\u4ef6\u53ef\u4ee5\u64c1\u6709\u76f8\u540c\u7684\u5c6c\u6027\u548c\u65b9\u6cd5\uff0c\u4f46\u6bcf\u500b\u7269\u4ef6\u7684\u6578\u64da\u537b\u53ef\u4ee5\u662f\u4e0d\u540c\u7684\u3002<\/p>\n

\u5b9a\u7fa9 Class<\/h2>\n

\u5728 Python \u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528 class<\/span> \u95dc\u9375\u5b57\u4f86\u5b9a\u7fa9\u4e00\u500b Class\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff1a<\/p>\n

“`python
\nclass MyClass:
\n pass
\n“`<\/p>\n

\u9019\u6bb5\u7a0b\u5f0f\u78bc\u5b9a\u7fa9\u4e86\u4e00\u500b\u540d\u70ba `MyClass` \u7684 Class\uff0c\u5b83\u662f\u4e00\u500b\u7a7a\u7684 Class\u3002<\/p>\n

\u5efa\u7acb\u7269\u4ef6<\/h2>\n

\u5b9a\u7fa9 Class \u4e4b\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b83\u4f86\u5efa\u7acb\u7269\u4ef6\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u5275\u5efa\u4e00\u500b\u7269\u4ef6\u7684\u7bc4\u4f8b\uff1a<\/p>\n

“`python
\nobj = MyClass()
\n“`<\/p>\n

\u9019\u6bb5\u7a0b\u5f0f\u78bc\u5275\u5efa\u4e86\u4e00\u500b\u540d\u70ba `obj` \u7684\u7269\u4ef6\uff0c\u9019\u500b\u7269\u4ef6\u662f `MyClass` \u985e\u5225\u7684\u4e00\u500b\u5be6\u4f8b\u3002<\/p>\n

\u5b9a\u7fa9\u5c6c\u6027\u548c\u65b9\u6cd5<\/h2>\n

\u5728 Class \u4e2d\u53ef\u4ee5\u5b9a\u7fa9\u5c6c\u6027\u548c\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u5305\u542b\u5c6c\u6027\u548c\u65b9\u6cd5\u7684\u7bc4\u4f8b\uff1a<\/p>\n

“`python
\nclass MyClass:
\n name = ‘John’
\n age = 20<\/p>\n

def say_hello(self):
\n print(‘Hello, my name is %s’ % self.name)
\n“`<\/p>\n

\u9019\u6bb5\u7a0b\u5f0f\u78bc\u5b9a\u7fa9\u4e86\u4e00\u500b\u540d\u70ba `MyClass` \u7684 Class\uff0c\u5b83\u6709\u5169\u500b\u5c6c\u6027 `name` \u548c `age`\uff0c\u4ee5\u53ca\u4e00\u500b\u65b9\u6cd5 `say_hello()`\u3002<\/p>\n

\u4f7f\u7528\u5c6c\u6027\u548c\u65b9\u6cd5<\/h2>\n

\u5efa\u7acb\u7269\u4ef6\u4e4b\u5f8c\uff0c\u53ef\u4ee5\u4f7f\u7528\u5176\u5c6c\u6027\u548c\u65b9\u6cd5\u3002\u4ee5\u4e0b\u662f\u5982\u4f55\u4f7f\u7528\u7684\u7bc4\u4f8b\uff1a<\/p>\n

“`python
\nobj = MyClass()
\nprint(obj.name) # \u8f38\u51fa: John<\/p>\n

obj.say_hello() # \u8f38\u51fa: Hello, my name is John
\n“`<\/p>\n

\u9019\u6bb5\u7a0b\u5f0f\u78bc\u5c55\u793a\u4e86\u5982\u4f55\u8a2a\u554f\u7269\u4ef6\u7684\u5c6c\u6027\u548c\u8abf\u7528\u5176\u65b9\u6cd5\u3002<\/p>\n

\u932f\u8aa4\u6392\u9664<\/h2>\n

\u5728\u4f7f\u7528 Class \u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4e00\u4e9b\u5e38\u898b\u932f\u8aa4\uff0c\u4f8b\u5982\uff1a<\/p>\n

1. **AttributeError**: \u7576\u4f60\u5617\u8a66\u8a2a\u554f\u4e00\u500b\u4e0d\u5b58\u5728\u7684\u5c6c\u6027\u6642\u6703\u767c\u751f\u3002\u4f8b\u5982\uff1a
\n “`python
\n print(obj.non_existent_attribute) # \u6703\u62cb\u51fa AttributeError
\n “`<\/p>\n

2. **TypeError**: \u7576\u4f60\u5617\u8a66\u4ee5\u932f\u8aa4\u7684\u65b9\u5f0f\u8abf\u7528\u65b9\u6cd5\u6642\u6703\u767c\u751f\u3002\u4f8b\u5982\uff1a
\n “`python
\n obj.say_hello(1) # \u6703\u62cb\u51fa TypeError\uff0c\u56e0\u70ba say_hello() \u4e0d\u63a5\u53d7\u53c3\u6578
\n “`<\/p>\n

\u5ef6\u4f38\u61c9\u7528<\/h2>\n

Python \u7684 Class \u4e0d\u50c5\u53ef\u4ee5\u7528\u4f86\u5c01\u88dd\u6578\u64da\u548c\u884c\u70ba\uff0c\u9084\u53ef\u4ee5\u7528\u65bc\u7e7c\u627f\u548c\u591a\u578b\u6027\u3002\u900f\u904e\u9019\u4e9b\u7279\u6027\uff0c\u53ef\u4ee5\u5efa\u7acb\u66f4\u70ba\u8907\u96dc\u7684\u985e\u5225\u7d50\u69cb\u4f86\u6eff\u8db3\u7279\u5b9a\u9700\u6c42\u3002<\/p>\n

\u5982\u9700\u6df1\u5165\u4e86\u89e3 Python \u7684\u7269\u4ef6\u5c0e\u5411\u7de8\u7a0b\uff0c\u5efa\u8b70\u53c3\u8003\u9019\u7bc7 [Python \u7269\u4ef6\u5c0e\u5411\u7de8\u7a0b\u6559\u5b78](https:\/\/vocus.cc\/article\/5f3ce3b6fd89780001e2c4e2)\u3002<\/p>\n

\u7d50\u8ad6<\/h2>\n

Python \u7684 Class \u662f\u4e00\u7a2e\u5f37\u5927\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u7d44\u7e54\u7a0b\u5f0f\u78bc\uff0c\u63d0\u5347\u53ef\u8b80\u6027\u53ca\u53ef\u7dad\u8b77\u6027\u3002\u638c\u63e1 Class \u7684\u4f7f\u7528\u662f\u5b78\u7fd2\u7269\u4ef6\u5c0e\u5411\u7a0b\u5f0f\u8a2d\u8a08\u7684\u7b2c\u4e00\u6b65\u3002<\/p>\n

Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/h2>\n

**Q1: Python \u4e2d\u7684 Class \u8207\u7269\u4ef6\u6709\u4ec0\u9ebc\u4e0d\u540c\uff1f**
\nA1: Class \u662f\u5c0d\u8c61\u7684\u85cd\u5716\u6216\u6a21\u677f\uff0c\u800c\u7269\u4ef6\u662f\u6839\u64da\u9019\u500b\u6a21\u677f\u5275\u5efa\u51fa\u4f86\u7684\u5be6\u4f8b\u3002Class \u5b9a\u7fa9\u4e86\u7269\u4ef6\u7684\u5c6c\u6027\u548c\u884c\u70ba\u3002<\/p>\n

**Q2: \u600e\u9ebc\u4f7f\u7528\u7e7c\u627f\u4f86\u64f4\u5c55 Class\uff1f**
\nA2: \u5728 Python \u4e2d\uff0c\u53ef\u4ee5\u901a\u904e\u5728 Class \u5b9a\u7fa9\u4e2d\u6307\u5b9a\u7236\u985e\u4f86\u9032\u884c\u7e7c\u627f\uff0c\u4f8b\u5982 `class SubClass(MyClass):`\uff0c\u9019\u6a23 SubClass \u5c31\u6703\u64c1\u6709 MyClass \u7684\u6240\u6709\u5c6c\u6027\u548c\u65b9\u6cd5\u3002<\/p>\n

**Q3: \u5982\u4f55\u5728 Class \u4e2d\u4f7f\u7528\u79c1\u6709\u5c6c\u6027\uff1f**
\nA3: \u5728\u5c6c\u6027\u540d\u7a31\u524d\u52a0\u4e0a\u96d9\u4e0b\u5283\u7dda\uff08`__`\uff09\u53ef\u4ee5\u5c07\u5176\u8a2d\u70ba\u79c1\u6709\u5c6c\u6027\uff0c\u4f8b\u5982 `self.__private_attribute`\u3002\u9019\u6a23\u5916\u90e8\u7121\u6cd5\u76f4\u63a5\u8a2a\u554f\u8a72\u5c6c\u6027\u3002<\/p>\n

—<\/p>\n","protected":false},"excerpt":{"rendered":"

Class()\u51fd\u6578\u662fPython\u4e2d\u7684\u4e00\u7a2e\u975e\u5e38\u91cd\u8981\u7684\u51fd\u6578\uff0c\u5b83\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5275\u5efa\u81ea\u5b9a\u7fa9\u985e\uff0c\u4e26\u5c07\u5176\u7528\u65bc\u5c0d\u8c61\u5c0e\u5411\u7a0b\u5e8f\u8a2d\u8a08\u3002\u672c\u6587\u5c07\u4ecb\u7d39Class()\u51fd\u6578\u7684\u57fa\u672c\u6982\u5ff5\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\u4f86\u5275\u5efa\u81ea\u5b9a\u7fa9\u985e\u3002<\/p>\n","protected":false},"author":1,"featured_media":2518,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[18],"tags":[15],"class_list":["post-3180","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-python","tag-python"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/badgameshow.com\/steven\/wp-content\/uploads\/2022\/12\/DALL\u00b7E-2022-12-28-14.25.55-\u62f7\u8c9d2.png","jetpack-related-posts":[],"jetpack_shortlink":"https:\/\/wp.me\/pcFK27-Pi","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3180","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/comments?post=3180"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3180\/revisions"}],"predecessor-version":[{"id":3181,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3180\/revisions\/3181"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media\/2518"}],"wp:attachment":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/media?parent=3180"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3180"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3180"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}