{"id":2886,"date":"2025-05-29T17:17:35","date_gmt":"2025-06-04T09:30:35","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=2886"},"modified":"2025-06-04T17:17:35","modified_gmt":"2025-06-04T09:30:35","slug":"%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84self%e9%97%9c%e9%8d%b5%e5%ad%97","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/python\/%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84self%e9%97%9c%e9%8d%b5%e5%ad%97\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3Python\u4e2d\u7684self\u95dc\u9375\u5b57\uff1a\u5f9e\u57fa\u790e\u5230\u5be6\u8e10"},"content":{"rendered":"

<\/p>\n

Python\u662f\u4e00\u7a2e\u975e\u5e38\u6d41\u884c\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u6191\u85c9\u5176\u7c21\u55ae\u800c\u5f37\u5927\u7684\u8a9e\u6cd5\uff0c\u9069\u5408\u5404\u7a2e\u7a0b\u5f0f\u8a2d\u8a08\u9700\u6c42\u3002\u5728Python\u4e2d\uff0c`self`\u662f\u4e00\u500b\u7279\u6b8a\u7684\u95dc\u9375\u5b57\uff0c\u80fd\u5920\u8b93\u6211\u5011\u5728\u985e\u5225\u4e2d\u65b9\u4fbf\u5730\u8a2a\u554f\u5c6c\u6027\u548c\u65b9\u6cd5\u3002\u672c\u6587\u5c07\u5f9e\u57fa\u790e\u6982\u5ff5\u958b\u59cb\uff0c\u6df1\u5165\u63a2\u8a0e`self`\u7684\u4f7f\u7528\u65b9\u6cd5\u53ca\u5176\u6700\u4f73\u5be6\u8e10\uff0c\u4e26\u63d0\u4f9b\u5be6\u4f5c\u7bc4\u4f8b\u53ca\u5e38\u898b\u932f\u8aa4\u7684\u6392\u9664\u65b9\u6cd5\u3002<\/p>\n

\u4ec0\u9ebc\u662fself\uff1f<\/h2>\n

`self`\u662fPython\u4e2d\u7684\u4e00\u500b\u7279\u6b8a\u95dc\u9375\u5b57\uff0c\u5b83\u6307\u5411\u7576\u524d\u5c0d\u8c61\u7684\u5f15\u7528\u3002\u5728\u985e\u7684\u65b9\u6cd5\u4e2d\uff0c`self`\u4f5c\u70ba\u7b2c\u4e00\u500b\u53c3\u6578\uff0c\u53ef\u4ee5\u7528\u4f86\u8a2a\u554f\u8a72\u985e\u7684\u5c6c\u6027\u548c\u65b9\u6cd5\u3002\u96d6\u7136\u6211\u5011\u5728\u5b9a\u7fa9\u65b9\u6cd5\u6642\u4e0d\u9700\u8981\u660e\u78ba\u50b3\u905e`self`\u53c3\u6578\uff0c\u4f46\u5b83\u5728\u65b9\u6cd5\u5167\u90e8\u662f\u53ef\u7528\u7684\u3002<\/p>\n

\u70ba\u4ec0\u9ebc\u4f7f\u7528self\uff1f<\/h2>\n

\u4f7f\u7528`self`\u7684\u4e3b\u8981\u539f\u56e0\u662f\u70ba\u4e86\u5728\u985e\u4e2d\u8a2a\u554f\u548c\u4fee\u6539\u5c6c\u6027\u3002\u9019\u6a23\uff0c\u6211\u5011\u5c31\u4e0d\u9700\u8981\u5728\u6bcf\u6b21\u5f15\u7528\u5c6c\u6027\u6642\u90fd\u6307\u5b9a\u5177\u9ad4\u7684\u5c0d\u8c61\u3002\u4ee5\u4e0b\u662f\u5e7e\u500b\u4f7f\u7528`self`\u7684\u512a\u9ede\uff1a<\/p>\n

– **\u6e05\u6670\u6027**\uff1a\u901a\u904e\u4f7f\u7528`self`\uff0c\u6211\u5011\u53ef\u4ee5\u660e\u78ba\u5730\u8868\u9054\u6211\u5011\u6b63\u5728\u64cd\u4f5c\u7684\u662f\u985e\u7684\u5c6c\u6027\u3002
\n– **\u9748\u6d3b\u6027**\uff1a`self`\u4f7f\u5f97\u985e\u7684\u5be6\u4f8b\u5316\u8b8a\u5f97\u66f4\u9748\u6d3b\uff0c\u53ef\u4ee5\u5728\u65b9\u6cd5\u5167\u90e8\u6839\u64da\u5be6\u4f8b\u7684\u4e0d\u540c\u72c0\u614b\u9032\u884c\u4e0d\u540c\u7684\u64cd\u4f5c\u3002
\n– **\u53ef\u7dad\u8b77\u6027**\uff1a\u4f7f\u7528`self`\u6709\u52a9\u65bc\u63d0\u9ad8\u4ee3\u78bc\u7684\u53ef\u8b80\u6027\u548c\u53ef\u7dad\u8b77\u6027\u3002<\/p>\n

\u5982\u4f55\u4f7f\u7528self\uff1f<\/h2>\n

\u4f7f\u7528`self`\u975e\u5e38\u7c21\u55ae\uff0c\u60a8\u53ea\u9700\u5728\u5b9a\u7fa9\u985e\u65b9\u6cd5\u6642\u5c07\u5176\u4f5c\u70ba\u7b2c\u4e00\u500b\u53c3\u6578\u3002\u4f8b\u5982\uff0c\u5047\u8a2d\u6211\u5011\u6709\u4e00\u500b\u540d\u70ba`MyClass`\u7684\u985e\uff0c\u4e26\u4e14\u60f3\u8981\u5b9a\u7fa9\u4e00\u500b\u540d\u70ba`my_method`\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u4ee3\u78bc\uff1a<\/p>\n

“`python
\nclass MyClass:
\n def __init__(self, value):
\n self.value = value # \u4f7f\u7528self\u4f86\u521d\u59cb\u5316\u5c6c\u6027<\/p>\n

def my_method(self):
\n print(f’The value is: {self.value}’) # \u4f7f\u7528self\u4f86\u8a2a\u554f\u5c6c\u6027<\/p>\n

# \u5be6\u4f5c\u7bc4\u4f8b
\nmy_instance = MyClass(10)
\nmy_instance.my_method() # \u8f38\u51fa: The value is: 10
\n“`<\/p>\n

\u5728\u9019\u500b\u4f8b\u5b50\u4e2d\uff0c`self.value`\u7528\u65bc\u5c07\u50b3\u5165\u7684\u53c3\u6578\u8ce6\u503c\u7d66\u5c0d\u8c61\u7684\u5c6c\u6027\uff0c\u4e26\u4e14\u5728`my_method`\u4e2d\uff0c`self`\u5e6b\u52a9\u6211\u5011\u8a2a\u554f\u8a72\u5c6c\u6027\u3002<\/p>\n

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

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

1. **\u672a\u5b9a\u7fa9\u5c6c\u6027**\uff1a\u5982\u679c\u5728\u65b9\u6cd5\u4e2d\u4f7f\u7528`self`\u8a2a\u554f\u672a\u5b9a\u7fa9\u7684\u5c6c\u6027\uff0c\u6703\u5c0e\u81f4`AttributeError`\u3002
\n – \u89e3\u6c7a\u65b9\u6cd5\uff1a\u78ba\u4fdd\u5728\u4f7f\u7528\u5c6c\u6027\u4e4b\u524d\uff0c\u5df2\u5728`__init__`\u65b9\u6cd5\u4e2d\u9032\u884c\u521d\u59cb\u5316\u3002<\/p>\n

2. **\u5fd8\u8a18\u4f7f\u7528self**\uff1a\u5728\u65b9\u6cd5\u5167\u4f7f\u7528\u985e\u5c6c\u6027\u6642\uff0c\u5fd8\u8a18\u52a0\u4e0a`self`\u6703\u5c0e\u81f4\u932f\u8aa4\u3002
\n – \u89e3\u6c7a\u65b9\u6cd5\uff1a\u59cb\u7d42\u4f7f\u7528`self`\u4f86\u8a2a\u554f\u5c6c\u6027\u548c\u65b9\u6cd5\u3002<\/p>\n

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

`self`\u4e0d\u50c5\u5728\u57fa\u672c\u985e\u5225\u4e2d\u6709\u7528\uff0c\u9084\u53ef\u4ee5\u5728\u7e7c\u627f\u548c\u591a\u614b\u6027\u4e2d\u767c\u63ee\u91cd\u8981\u4f5c\u7528\u3002\u7576\u5b50\u985e\u7e7c\u627f\u7236\u985e\u6642\uff0c`self`\u5141\u8a31\u6211\u5011\u5728\u5b50\u985e\u4e2d\u8abf\u7528\u7236\u985e\u7684\u65b9\u6cd5\uff0c\u9019\u5c0d\u65bc\u69cb\u5efa\u8907\u96dc\u7684\u7cfb\u7d71\u975e\u5e38\u91cd\u8981\u3002<\/p>\n

\u6b64\u5916\uff0c\u60a8\u53ef\u4ee5\u901a\u904e\u5b78\u7fd2\u66f4\u591a\u95dc\u65bcPython\u9762\u5411\u5c0d\u8c61\u7de8\u7a0b\u7684\u77e5\u8b58\uff0c\u4f86\u9032\u4e00\u6b65\u63d0\u5347\u60a8\u7684\u7de8\u7a0b\u80fd\u529b\u3002\u5982\u679c\u60a8\u60f3\u6df1\u5165\u4e86\u89e3Python\u7684\u5176\u4ed6\u529f\u80fd\u548c\u6700\u4f73\u5be6\u8e10\uff0c\u5efa\u8b70\u53c3\u8003\u9019\u7bc7[Python \u6559\u5b78\u8cc7\u6e90](https:\/\/vocus.cc\/article\/5f5b0344fd89780001d6c7d7)\u3002<\/p>\n

\u7e3d\u7d50<\/h2>\n

\u5728Python\u4e2d\uff0c`self`\u662f\u4e00\u500b\u5fc5\u4e0d\u53ef\u5c11\u7684\u95dc\u9375\u5b57\uff0c\u5b83\u7528\u65bc\u8a2a\u554f\u548c\u7ba1\u7406\u985e\u4e2d\u7684\u5c6c\u6027\u548c\u65b9\u6cd5\u3002\u901a\u904e\u6b63\u78ba\u4f7f\u7528`self`\uff0c\u60a8\u53ef\u4ee5\u7de8\u5beb\u51fa\u66f4\u6e05\u6670\u3001\u9748\u6d3b\u4e14\u6613\u65bc\u7dad\u8b77\u7684\u4ee3\u78bc\u3002<\/p>\n

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

**Q1: \u70ba\u4ec0\u9ebc`self`\u4e0d\u80fd\u88ab\u660e\u78ba\u6307\u5b9a\u6210\u5176\u4ed6\u540d\u7a31\uff1f**
\nA1: `self`\u662f\u4e00\u7a2e\u6163\u4f8b\uff0c\u96d6\u7136\u53ef\u4ee5\u4f7f\u7528\u5176\u4ed6\u540d\u7a31\uff0c\u4f46\u4f7f\u7528`self`\u53ef\u4ee5\u63d0\u9ad8\u4ee3\u78bc\u7684\u53ef\u8b80\u6027\uff0c\u8b93\u5176\u4ed6\u958b\u767c\u8005\u66f4\u5bb9\u6613\u7406\u89e3\u60a8\u7684\u4ee3\u78bc\u3002<\/p>\n

**Q2: \u662f\u5426\u53ef\u4ee5\u5728\u975c\u614b\u65b9\u6cd5\u4e2d\u4f7f\u7528`self`\uff1f**
\nA2: \u4e0d\u53ef\u4ee5\uff0c\u975c\u614b\u65b9\u6cd5\u4e0d\u9700\u8981\u5c0d\u8c61\u5be6\u4f8b\uff0c\u56e0\u6b64\u4e0d\u61c9\u4f7f\u7528`self`\u3002\u975c\u614b\u65b9\u6cd5\u901a\u5e38\u7528\u65bc\u4e0d\u4f9d\u8cf4\u65bc\u985e\u5c6c\u6027\u7684\u65b9\u6cd5\u3002<\/p>\n

**Q3: `self`\u53ef\u4ee5\u6307\u5411\u5176\u4ed6\u5c0d\u8c61\u55ce\uff1f**
\nA3: `self`\u6307\u5411\u7576\u524d\u5c0d\u8c61\u7684\u5f15\u7528\uff0c\u4f46\u60a8\u53ef\u4ee5\u5c07\u5176\u4ed6\u5c0d\u8c61\u7684\u5f15\u7528\u8ce6\u503c\u7d66\u985e\u7684\u5c6c\u6027\uff0c\u4ee5\u4fbf\u5728\u65b9\u6cd5\u4e2d\u4f7f\u7528\u3002<\/p>\n

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

self\u662fPython\u4e2d\u7684\u4e00\u500b\u95dc\u9375\u5b57\uff0c\u5b83\u53ef\u4ee5\u8b93\u4f60\u8a2a\u554f\u985e\u4e2d\u7684\u5c6c\u6027\u548c\u65b9\u6cd5\uff0c\u8b93\u4f60\u53ef\u4ee5\u66f4\u6709\u6548\u5730\u7ba1\u7406\u4f60\u7684\u7a0b\u5f0f\u78bc\u3002\u672c\u6587\u5c07\u8a73\u7d30\u4ecb\u7d39self\u7684\u7528\u6cd5\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u793a\u4f8b\uff0c\u8b93\u4f60\u53ef\u4ee5\u66f4\u597d\u5730\u7406\u89e3\u5b83\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-2886","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-Ky","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2886","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=2886"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2886\/revisions"}],"predecessor-version":[{"id":2887,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/2886\/revisions\/2887"}],"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=2886"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=2886"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=2886"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}