{"id":3556,"date":"2025-06-02T14:36:46","date_gmt":"2025-06-04T07:25:45","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3556"},"modified":"2025-06-04T14:36:46","modified_gmt":"2025-06-04T07:25:45","slug":"%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84attributeerror%e9%8c%af%e8%aa%a4%e8%a8%8a%e6%81%af","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/python\/%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84attributeerror%e9%8c%af%e8%aa%a4%e8%a8%8a%e6%81%af\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3 Python \u4e2d\u7684 AttributeError \u932f\u8aa4\u53ca\u5176\u89e3\u6c7a\u65b9\u6848\u30102025 \u6700\u65b0\u6559\u5b78\u3011"},"content":{"rendered":"

<\/p>\n

\u4ec0\u9ebc\u662f Python \u7684 AttributeError\uff1f<\/h1>\n

Python \u7684 AttributeError \u662f\u4e00\u7a2e\u5e38\u898b\u7684\u932f\u8aa4\uff0c\u8868\u793a\u5728 Python \u7a0b\u5f0f\u4e2d\uff0c\u60a8\u5617\u8a66\u8a2a\u554f\u4e00\u500b\u5c0d\u8c61\u7684\u5c6c\u6027\uff0c\u4f46\u8a72\u5c0d\u8c61\u4e26\u4e0d\u5b58\u5728\u8a72\u5c6c\u6027\u3002\u9019\u7a2e\u932f\u8aa4\u901a\u5e38\u6703\u5728\u60a8\u5617\u8a66\u8a2a\u554f\u5c0d\u8c61\u7684\u5c6c\u6027\u6216\u8abf\u7528\u5c0d\u8c61\u7684\u65b9\u6cd5\u6642\u767c\u751f\uff0c\u56e0\u6b64\u7406\u89e3\u9019\u500b\u932f\u8aa4\u53ca\u5176\u89e3\u6c7a\u65b9\u6cd5\u5c0d\u65bc\u6bcf\u4f4d Python \u958b\u767c\u8005\u4f86\u8aaa\u90fd\u662f\u975e\u5e38\u91cd\u8981\u7684\u3002<\/p>\n

AttributeError \u7684\u793a\u4f8b<\/h2>\n

\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684\u793a\u4f8b\uff0c\u5c55\u793a\u4e86 AttributeError \u7684\u51fa\u73fe\uff1a<\/p>\n

“`python
\nclass Person:
\n def __init__(self, name):
\n self.name = name<\/p>\n

p = Person(“John”)<\/p>\n

print(p.age) # \u5617\u8a66\u8a2a\u554f\u4e0d\u5b58\u5728\u7684\u5c6c\u6027
\n“`<\/p>\n

\u57f7\u884c\u4e0a\u9762\u7684\u4ee3\u78bc\u6703\u7522\u751f\u4ee5\u4e0b\u932f\u8aa4\uff1a<\/p>\n

“`
\nAttributeError: ‘Person’ object has no attribute ‘age’
\n“`<\/p>\n

\u9019\u662f\u56e0\u70ba\u6211\u5011\u5617\u8a66\u8a2a\u554f\u5c0d\u8c61 `p` \u7684\u5c6c\u6027 `age`\uff0c\u4f46\u8a72\u5c0d\u8c61\u4e26\u672a\u5b9a\u7fa9\u8a72\u5c6c\u6027\u3002<\/p>\n

\u5982\u4f55\u89e3\u6c7a AttributeError\uff1f<\/h2>\n

\u89e3\u6c7a AttributeError \u7684\u6700\u4f73\u65b9\u6cd5\u662f\u78ba\u4fdd\u60a8\u50c5\u8a2a\u554f\u5c0d\u8c61\u7684\u5c6c\u6027\u6216\u65b9\u6cd5\uff0c\u800c\u8a72\u5c0d\u8c61\u5fc5\u9808\u5177\u6709\u8a72\u5c6c\u6027\u6216\u65b9\u6cd5\u3002\u5982\u679c\u60a8\u4e0d\u78ba\u5b9a\u5c0d\u8c61\u662f\u5426\u5177\u6709\u8a72\u5c6c\u6027\u6216\u65b9\u6cd5\uff0c\u53ef\u4ee5\u4f7f\u7528 `hasattr()` \u51fd\u6578\u4f86\u6aa2\u67e5\uff1a<\/p>\n

“`python
\nif hasattr(p, ‘age’):
\n print(p.age)
\nelse:
\n print(“\u5c6c\u6027 ‘age’ \u4e0d\u5b58\u5728\u65bc\u5c0d\u8c61 p \u4e2d\u3002”)
\n“`<\/p>\n

\u5982\u679c\u60a8\u78ba\u4fe1\u5c0d\u8c61\u5177\u6709\u8a72\u5c6c\u6027\u6216\u65b9\u6cd5\uff0c\u4f46\u4ecd\u7136\u51fa\u73fe AttributeError\uff0c\u5247\u53ef\u80fd\u662f\u5c0d\u8c61\u7684\u5c6c\u6027\u6216\u65b9\u6cd5\u88ab\u8986\u84cb\u4e86\u3002\u5728\u9019\u7a2e\u60c5\u6cc1\u4e0b\uff0c\u60a8\u53ef\u4ee5\u4f7f\u7528 `dir()` \u51fd\u6578\u4f86\u6aa2\u67e5\u5c0d\u8c61\u7684\u5c6c\u6027\u548c\u65b9\u6cd5\uff1a<\/p>\n

“`python
\nprint(dir(p)) # \u5217\u51fa\u5c0d\u8c61 p \u7684\u6240\u6709\u5c6c\u6027\u548c\u65b9\u6cd5
\n“`<\/p>\n

\u5ef6\u4f38\u61c9\u7528\uff1a\u4f7f\u7528\u81ea\u8a02\u5c6c\u6027<\/h2>\n

\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\uff0c\u60a8\u53ef\u80fd\u5e0c\u671b\u52d5\u614b\u5730\u6dfb\u52a0\u5c6c\u6027\u7d66\u5c0d\u8c61\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u793a\u4f8b\uff1a<\/p>\n

“`python
\nsetattr(p, ‘age’, 30) # \u52d5\u614b\u8a2d\u7f6e\u5c6c\u6027 age
\nprint(p.age) # \u73fe\u5728\u53ef\u4ee5\u6210\u529f\u8a2a\u554f age \u5c6c\u6027
\n“`<\/p>\n

\u9019\u6a23\u505a\u53ef\u4ee5\u907f\u514d AttributeError\uff0c\u4e26\u70ba\u5c0d\u8c61\u63d0\u4f9b\u66f4\u52a0\u9748\u6d3b\u7684\u5c6c\u6027\u7ba1\u7406\u65b9\u5f0f\u3002<\/p>\n

\u7e3d\u7d50<\/h2>\n

AttributeError \u662f Python \u7a0b\u5f0f\u4e2d\u4e00\u7a2e\u5e38\u898b\u7684\u932f\u8aa4\uff0c\u5b83\u8868\u793a\u60a8\u5617\u8a66\u8a2a\u554f\u4e00\u500b\u5c0d\u8c61\u7684\u5c6c\u6027\uff0c\u4f46\u8a72\u5c0d\u8c61\u4e26\u6c92\u6709\u8a72\u5c6c\u6027\u3002\u89e3\u6c7a\u6b64\u932f\u8aa4\u7684\u6700\u4f73\u65b9\u6cd5\u662f\u78ba\u4fdd\u60a8\u50c5\u8a2a\u554f\u5c0d\u8c61\u7684\u5c6c\u6027\u6216\u65b9\u6cd5\uff0c\u800c\u8a72\u5c0d\u8c61\u5fc5\u9808\u5177\u6709\u8a72\u5c6c\u6027\u6216\u65b9\u6cd5\u3002\u60a8\u53ef\u4ee5\u4f7f\u7528 `hasattr()` \u51fd\u6578\u4f86\u6aa2\u67e5\u5c6c\u6027\u7684\u5b58\u5728\u6027\uff0c\u6216\u4f7f\u7528 `dir()` \u51fd\u6578\u4f86\u67e5\u770b\u5c0d\u8c61\u7684\u6240\u6709\u5c6c\u6027\u548c\u65b9\u6cd5\u3002\u900f\u904e\u9019\u4e9b\u65b9\u6cd5\uff0c\u60a8\u53ef\u4ee5\u6709\u6548\u5730\u6392\u9664\u932f\u8aa4\uff0c\u63d0\u5347\u7a0b\u5f0f\u7684\u7a69\u5b9a\u6027\u548c\u53ef\u8b80\u6027\u3002<\/p>\n

\u82e5\u60f3\u9032\u4e00\u6b65\u4e86\u89e3 Python \u932f\u8aa4\u8655\u7406\u7684\u6700\u4f73\u5be6\u8e10\uff0c\u53ef\u4ee5\u53c3\u8003\u9019\u7bc7 [Python \u932f\u8aa4\u8655\u7406\u6559\u5b78](https:\/\/vocus.cc\/article\/5f1234567890) \u4f86\u63d0\u5347\u60a8\u7684\u7a0b\u5f0f\u8a2d\u8a08\u6280\u80fd\u3002<\/p>\n

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

**Q1: \u70ba\u4ec0\u9ebc\u6211\u6703\u9047\u5230 AttributeError\uff1f**
\nA1: AttributeError \u901a\u5e38\u662f\u56e0\u70ba\u60a8\u5617\u8a66\u8a2a\u554f\u5c0d\u8c61\u7684\u5c6c\u6027\uff0c\u4f46\u8a72\u5c0d\u8c61\u4e26\u4e0d\u5b58\u5728\u8a72\u5c6c\u6027\u3002\u9019\u53ef\u80fd\u662f\u56e0\u70ba\u60a8\u62fc\u5beb\u932f\u8aa4\u3001\u5c6c\u6027\u672a\u5b9a\u7fa9\u6216\u5c0d\u8c61\u985e\u578b\u4e0d\u6b63\u78ba\u3002<\/p>\n

**Q2: \u5982\u4f55\u6709\u6548\u907f\u514d AttributeError\uff1f**
\nA2: \u5728\u8a2a\u554f\u5c0d\u8c61\u7684\u5c6c\u6027\u4e4b\u524d\uff0c\u4f7f\u7528 `hasattr()` \u51fd\u6578\u6aa2\u67e5\u5c6c\u6027\u662f\u5426\u5b58\u5728\uff0c\u4e26\u9075\u5faa\u826f\u597d\u7684\u7de8\u78bc\u7fd2\u6163\uff0c\u78ba\u4fdd\u5c0d\u8c61\u7684\u5c6c\u6027\u6b63\u78ba\u5b9a\u7fa9\u3002<\/p>\n

**Q3: \u5982\u679c\u6211\u4e0d\u60f3\u6aa2\u67e5\u6240\u6709\u5c6c\u6027\uff0c\u6211\u53ef\u4ee5\u600e\u9ebc\u505a\uff1f**
\nA3: \u60a8\u53ef\u4ee5\u4f7f\u7528 `try-except` \u8a9e\u53e5\u4f86\u6355\u6349 AttributeError\uff0c\u5982\u4e0b\u6240\u793a\uff1a<\/p>\n

“`python
\ntry:
\n print(p.age)
\nexcept AttributeError:
\n print(“\u5c6c\u6027 ‘age’ \u4e0d\u5b58\u5728\u3002”)
\n“`<\/p>\n

\u9019\u6a23\u53ef\u4ee5\u7c21\u5316\u932f\u8aa4\u8655\u7406\u7684\u904e\u7a0b\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u672c\u6587\u5c07\u4ecb\u7d39Python\u4e2d\u7684AttributeError\u932f\u8aa4\u8a0a\u606f\uff0c\u8a73\u7d30\u89e3\u91cbAttributeError\u7684\u5b9a\u7fa9\u3001\u539f\u56e0\u53ca\u89e3\u6c7a\u65b9\u6cd5\uff0c\u8b93\u5b78\u751f\u80fd\u5920\u66f4\u6df1\u5165\u5730\u4e86\u89e3Python\u4e2d\u7684methods()\u51fd\u6578\u529f\u80fd\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-3556","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-Vm","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3556","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=3556"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3556\/revisions"}],"predecessor-version":[{"id":3557,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3556\/revisions\/3557"}],"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=3556"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3556"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3556"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}