<\/p>\n
\u5728 Python \u4e2d\uff0c`issubclass()` \u662f\u4e00\u500b\u7528\u4f86\u6aa2\u67e5\u5b50\u985e\u5225\u8207\u7236\u985e\u5225\u4e4b\u9593\u95dc\u4fc2\u7684\u91cd\u8981\u51fd\u5f0f\u3002\u5b83\u53ef\u4ee5\u7528\u4f86\u78ba\u5b9a\u4e00\u500b\u985e\u5225\u662f\u5426\u7e7c\u627f\u81ea\u53e6\u4e00\u500b\u985e\u5225\uff0c\u6216\u662f\u4e00\u500b\u7269\u4ef6\u662f\u5426\u662f\u67d0\u500b\u985e\u5225\u7684\u5be6\u4f8b\u3002\u4e86\u89e3\u9019\u500b\u51fd\u5f0f\u7684\u7528\u6cd5\u53ca\u5176\u61c9\u7528\u5c0d\u65bc\u7de8\u5beb\u53ef\u7dad\u8b77\u7684 Python \u4ee3\u78bc\u81f3\u95dc\u91cd\u8981\u3002<\/p>\n
### `issubclass()` \u51fd\u5f0f\u7684\u8a9e\u6cd5<\/p>\n
`issubclass()` \u51fd\u5f0f\u7684\u8a9e\u6cd5\u5982\u4e0b\uff1a<\/p>\n
“`python
\nissubclass(sub, sup)
\n“`<\/p>\n
\u5728\u9019\u88e1\uff0c`sub` \u662f\u8981\u6aa2\u67e5\u7684\u5b50\u985e\u5225\uff0c\u800c `sup` \u662f\u8981\u6aa2\u67e5\u7684\u7236\u985e\u5225\u3002\u5982\u679c `sub` \u771f\u7684\u7e7c\u627f\u81ea `sup`\uff0c\u5247\u51fd\u5f0f\u6703\u8fd4\u56de `True`\uff0c\u5426\u5247\u8fd4\u56de `False`\u3002<\/p>\n
### `issubclass()` \u7684\u5be6\u4f5c\u7bc4\u4f8b<\/p>\n
\u4ee5\u4e0b\u7684\u7bc4\u4f8b\u4e2d\uff0c\u6211\u5011\u5b9a\u7fa9\u4e86\u4e00\u500b\u57fa\u672c\u985e\u5225 `Base`\uff0c\u4ee5\u53ca\u4e00\u500b\u7e7c\u627f\u81ea `Base` \u7684\u5b50\u985e\u5225 `Sub`\uff1a<\/p>\n
“`python
\nclass Base:
\n pass<\/p>\n
class Sub(Base):
\n pass
\n“`<\/p>\n
\u63a5\u4e0b\u4f86\uff0c\u6211\u5011\u53ef\u4ee5\u4f7f\u7528 `issubclass()` \u51fd\u5f0f\u4f86\u6aa2\u67e5 `Sub` \u662f\u5426\u7e7c\u627f\u81ea `Base`\uff1a<\/p>\n
“`python
\nresult = issubclass(Sub, Base)
\nprint(result) # \u8f38\u51fa: True
\n“`<\/p>\n
\u57f7\u884c\u4e0a\u9762\u7684\u7a0b\u5f0f\u78bc\u6703\u8fd4\u56de `True`\uff0c\u8868\u793a `Sub` \u78ba\u5be6\u7e7c\u627f\u81ea `Base`\u3002\u9019\u500b\u529f\u80fd\u5728\u9762\u5c0d\u8907\u96dc\u7684\u985e\u5225\u7e7c\u627f\u95dc\u4fc2\u6642\uff0c\u80fd\u5920\u5e6b\u52a9\u6211\u5011\u5feb\u901f\u5224\u65b7\u985e\u5225\u7684\u7e7c\u627f\u7d50\u69cb\u3002<\/p>\n
### `issubclass()` \u7684\u512a\u9ede<\/p>\n
`issubclass()` \u51fd\u5f0f\u7684\u512a\u52e2\u5728\u65bc\u5b83\u80fd\u5920\u5feb\u901f\u6aa2\u67e5\u4e00\u500b\u985e\u5225\u6216\u7269\u4ef6\u662f\u5426\u7b26\u5408\u67d0\u500b\u7e7c\u627f\u689d\u4ef6\uff0c\u800c\u4e0d\u9700\u8981\u6df1\u5165\u6aa2\u67e5\u7e7c\u627f\u95dc\u4fc2\u7684\u7d30\u7bc0\u3002\u9019\u5c0d\u65bc\u5927\u578b\u5c08\u6848\u4e2d\u7684\u985e\u5225\u8a2d\u8a08\u548c\u67b6\u69cb\u90fd\u975e\u5e38\u6709\u7528\u3002<\/p>\n
### \u5e38\u898b\u932f\u8aa4\u53ca\u6392\u9664<\/p>\n
1. **\u6aa2\u67e5\u985e\u5225\u985e\u578b**\uff1a\u78ba\u4fdd\u5728\u4f7f\u7528 `issubclass()` \u6642\uff0c`sub` \u548c `sup` \u53c3\u6578\u90fd\u662f\u985e\u5225\u3002\u5982\u679c\u50b3\u5165\u7684\u662f\u5be6\u4f8b\u7269\u4ef6\uff0c\u51fd\u5f0f\u5c07\u6703\u62cb\u51fa `TypeError`\u3002<\/p>\n
“`python
\n class Example:
\n pass<\/p>\n
instance = Example()
\n print(issubclass(instance, Example)) # \u932f\u8aa4\uff0c\u56e0\u70ba instance \u4e0d\u662f\u985e\u5225
\n “`<\/p>\n
2. **\u591a\u91cd\u7e7c\u627f**\uff1a\u5728\u4f7f\u7528\u591a\u91cd\u7e7c\u627f\u6642\uff0c`issubclass()` \u4f9d\u7136\u53ef\u4ee5\u6b63\u5e38\u904b\u4f5c\uff0c\u4f46\u9700\u8981\u6ce8\u610f\u985e\u5225\u7684\u7e7c\u627f\u9806\u5e8f\u3002<\/p>\n
### \u5ef6\u4f38\u61c9\u7528<\/p>\n
`issubclass()` \u5728\u8a31\u591a\u5834\u666f\u4e2d\u90fd\u80fd\u767c\u63ee\u4f5c\u7528\uff0c\u4f8b\u5982\uff1a<\/p>\n
– \u9a57\u8b49\u4e00\u500b\u985e\u5225\u662f\u5426\u7b26\u5408\u67d0\u500b\u63a5\u53e3\u3002
\n– \u6aa2\u67e5\u63d2\u4ef6\u7cfb\u7d71\u4e2d\u7684\u985e\u5225\u76f8\u5bb9\u6027\u3002
\n– \u5728\u6846\u67b6\u4e2d\u52d5\u614b\u6c7a\u5b9a\u7269\u4ef6\u7684\u884c\u70ba\u3002<\/p>\n
\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3 Python \u7684\u985e\u5225\u548c\u7e7c\u627f\uff0c\u6b61\u8fce\u53c3\u8003 [vocus.cc \u7684 Python \u985e\u5225\u6559\u5b78](https:\/\/vocus.cc) \u4ee5\u7372\u53d6\u66f4\u591a\u8a73\u7d30\u8cc7\u8a0a\u3002<\/p>\n
### Q&A\uff08\u5e38\u898b\u554f\u984c\u89e3\u7b54\uff09<\/p>\n
**Q1: `issubclass()` \u51fd\u5f0f\u53ef\u4ee5\u7528\u65bc\u6240\u6709\u985e\u5225\u55ce\uff1f**
\nA1: \u662f\u7684\uff0c`issubclass()` \u53ef\u4ee5\u7528\u65bc\u6240\u6709\u985e\u5225\uff0c\u5305\u62ec\u7528\u6236\u81ea\u5b9a\u7fa9\u7684\u985e\u5225\u548c\u5167\u5efa\u985e\u5225\u3002<\/p>\n
**Q2: \u5982\u679c `sub` \u548c `sup` \u4e0d\u662f\u985e\u5225\uff0c\u6703\u767c\u751f\u4ec0\u9ebc\u60c5\u6cc1\uff1f**
\nA2: \u5982\u679c `sub` \u6216 `sup` \u4e0d\u662f\u985e\u5225\uff0c`issubclass()` \u6703\u62cb\u51fa `TypeError`\uff0c\u56e0\u6b64\u5fc5\u9808\u78ba\u4fdd\u5b83\u5011\u90fd\u662f\u6709\u6548\u7684\u985e\u5225\u3002<\/p>\n
**Q3: \u5982\u4f55\u6aa2\u67e5\u4e00\u500b\u7269\u4ef6\u662f\u5426\u662f\u67d0\u500b\u985e\u5225\u7684\u5be6\u4f8b\uff1f**
\nA3: \u53ef\u4ee5\u4f7f\u7528 `isinstance()` \u51fd\u5f0f\u4f86\u6aa2\u67e5\u4e00\u500b\u7269\u4ef6\u662f\u5426\u662f\u67d0\u500b\u985e\u5225\u7684\u5be6\u4f8b\uff0c\u8a9e\u6cd5\u5982\u4e0b\uff1a`isinstance(obj, ClassName)`\u3002<\/p>\n
—<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528Python\u4e2d\u7684Subclasscheck()\u529f\u80fd\uff0c\u4e86\u89e3\u5b83\u7684\u7528\u9014\uff0c\u4ee5\u53ca\u5982\u4f55\u4f7f\u7528\u5b83\u4f86\u6aa2\u67e5\u5b50\u985e\u5225\u7684\u95dc\u4fc2\u3002\u77ad\u89e3\u5982\u4f55\u4f7f\u7528Subclasscheck()\u529f\u80fd\uff0c\u4ee5\u53ca\u5982\u4f55\u61c9\u7528\u5b83\u4f86\u63d0\u9ad8\u7a0b\u5f0f\u78bc\u7684\u53ef\u8b80\u6027\u548c\u53ef\u7dad\u8b77\u6027\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-3108","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-O8","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3108","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=3108"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3108\/revisions"}],"predecessor-version":[{"id":3109,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3108\/revisions\/3109"}],"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=3108"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3108"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3108"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}