{"id":3114,"date":"2025-06-02T16:15:43","date_gmt":"2025-06-04T08:52:42","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3114"},"modified":"2025-06-04T16:15:43","modified_gmt":"2025-06-04T08:52:42","slug":"%e4%ba%86%e8%a7%a3python%e7%9a%84annotations%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/python\/%e4%ba%86%e8%a7%a3python%e7%9a%84annotations%e5%8a%9f%e8%83%bd\/","title":{"rendered":"\u6df1\u5165\u4e86\u89e3 Python \u7684 Annotations \u529f\u80fd\uff1a\u6700\u4f73\u5be6\u8e10\u8207\u61c9\u7528\u7bc4\u4f8b"},"content":{"rendered":"

<\/p>\n

\u6df1\u5165\u4e86\u89e3 Python \u7684 Annotations \u529f\u80fd<\/h1>\n

Python \u7684 Annotations \u529f\u80fd\u662f\u4e00\u500b\u975e\u5e38\u5be6\u7528\u7684\u7279\u6027\uff0c\u8b93\u958b\u767c\u8005\u5728\u5b9a\u7fa9\u51fd\u5f0f\u6642\u80fd\u5920\u5c0d\u53c3\u6578\u548c\u56de\u50b3\u503c\u9032\u884c\u8a3b\u89e3\uff0c\u5f9e\u800c\u589e\u5f37\u7a0b\u5f0f\u78bc\u7684\u53ef\u8b80\u6027\u8207\u53ef\u7dad\u8b77\u6027\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0e Python Annotations \u7684\u8a9e\u6cd5\u3001\u512a\u7f3a\u9ede\uff0c\u4ee5\u53ca\u5982\u4f55\u5728\u5be6\u969b\u958b\u767c\u4e2d\u904b\u7528\u9019\u4e00\u7279\u6027\u3002<\/p>\n

Annotations \u7684\u57fa\u672c\u8a9e\u6cd5<\/h2>\n

Annotations \u7684\u8a9e\u6cd5\u76f8\u7576\u7c21\u55ae\u3002\u5728\u51fd\u5f0f\u5b9a\u7fa9\u4e2d\uff0c\u53ea\u9700\u5728\u53c3\u6578\u540d\u5f8c\u52a0\u4e0a\u5192\u865f\uff0c\u4e26\u6307\u5b9a\u8a72\u53c3\u6578\u7684\u578b\u614b\uff1b\u540c\u6a23\u5730\uff0c\u5728\u51fd\u5f0f\u7684\u56de\u50b3\u503c\u524d\u52a0\u4e0a\u7bad\u982d\u6a19\u8a18 `->` \u4f86\u8a3b\u660e\u56de\u50b3\u503c\u7684\u578b\u614b\u3002\u4ee5\u4e0b\u662f\u7bc4\u4f8b\uff1a<\/p>\n

“`python
\ndef my_func(num: int) -> str:
\n return str(num)
\n“`<\/p>\n

\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c`num` \u53c3\u6578\u88ab\u6a19\u8a3b\u70ba\u6574\u6578\u578b\u614b\uff0c\u51fd\u5f0f\u56de\u50b3\u4e00\u500b\u5b57\u4e32\u3002\u9019\u4e0d\u50c5\u63d0\u5347\u4e86\u7a0b\u5f0f\u78bc\u7684\u53ef\u8b80\u6027\uff0c\u9084\u80fd\u5e6b\u52a9\u958b\u767c\u8005\u5728\u7de8\u8f2f\u5668\u4e2d\u7372\u5f97\u578b\u614b\u63d0\u793a\u3002<\/p>\n

Annotations \u7684\u512a\u9ede<\/h2>\n

Python Annotations \u6709\u591a\u9805\u512a\u9ede\uff1a<\/p>\n

1. **\u53ef\u8b80\u6027\u63d0\u5347**\uff1aAnnotations \u4f7f\u5f97\u7a0b\u5f0f\u78bc\u66f4\u5bb9\u6613\u7406\u89e3\uff0c\u7279\u5225\u662f\u5728\u5927\u578b\u5c08\u6848\u4e2d\uff0c\u5c0d\u65bc\u53c3\u6578\u548c\u56de\u50b3\u503c\u7684\u578b\u614b\u63d0\u793a\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u5feb\u901f\u4e86\u89e3\u51fd\u5f0f\u7684\u7528\u9014\u3002<\/p>\n

2. **\u578b\u614b\u6aa2\u67e5**\uff1a\u96d6\u7136 Python \u662f\u52d5\u614b\u578b\u614b\u8a9e\u8a00\uff0c\u4f46\u4f7f\u7528 Annotations \u53ef\u4ee5\u8f14\u52a9\u975c\u614b\u578b\u614b\u6aa2\u67e5\u5de5\u5177\uff08\u5982 Mypy\uff09\u9032\u884c\u578b\u614b\u6aa2\u67e5\uff0c\u5f9e\u800c\u6e1b\u5c11\u57f7\u884c\u6642\u932f\u8aa4\u7684\u6a5f\u6703\u3002<\/p>\n

Annotations \u7684\u7f3a\u9ede<\/h2>\n

\u5118\u7ba1 Annotations \u5e36\u4f86\u8a31\u591a\u597d\u8655\uff0c\u4ecd\u7136\u5b58\u5728\u4e00\u4e9b\u9650\u5236\uff1a<\/p>\n

1. **\u7121\u6cd5\u7528\u65bc\u8b8a\u6578**\uff1aAnnotations \u50c5\u9069\u7528\u65bc\u51fd\u5f0f\u53c3\u6578\u548c\u56de\u50b3\u503c\uff0c\u7121\u6cd5\u7528\u4f86\u6a19\u8a3b\u8b8a\u6578\u7684\u578b\u614b\uff0c\u9019\u5728\u67d0\u4e9b\u60c5\u6cc1\u4e0b\u53ef\u80fd\u6703\u9020\u6210\u4e0d\u4fbf\u3002<\/p>\n

2. **\u4e0d\u5f37\u5236\u57f7\u884c**\uff1aAnnotations \u53ea\u662f\u8a3b\u89e3\uff0c\u4e26\u4e0d\u6703\u5728\u57f7\u884c\u6642\u9032\u884c\u578b\u614b\u6aa2\u67e5\uff0c\u56e0\u6b64\u958b\u767c\u8005\u4ecd\u9700\u81ea\u884c\u78ba\u4fdd\u53c3\u6578\u548c\u56de\u50b3\u503c\u7684\u578b\u614b\u6b63\u78ba\u3002<\/p>\n

\u5be6\u4f5c\u7bc4\u4f8b\uff1a\u4f7f\u7528 Annotations \u7684\u51fd\u5f0f<\/h2>\n

\u4ee5\u4e0b\u662f\u4e00\u500b\u5be6\u969b\u7684\u7bc4\u4f8b\uff0c\u5c55\u793a\u5982\u4f55\u4f7f\u7528 Annotations \u5b9a\u7fa9\u4e00\u500b\u8a08\u7b97\u5169\u500b\u6578\u5b57\u548c\u7684\u51fd\u5f0f\uff1a<\/p>\n

“`python
\ndef add_numbers(a: float, b: float) -> float:
\n return a + b<\/p>\n

result = add_numbers(5.0, 3.2)
\nprint(f”The sum is: {result}”)
\n“`<\/p>\n

\u5728\u9019\u500b\u7bc4\u4f8b\u4e2d\uff0c`a` \u548c `b` \u90fd\u88ab\u6a19\u8a3b\u70ba\u6d6e\u9ede\u6578\uff0c\u56de\u50b3\u503c\u4e5f\u662f\u6d6e\u9ede\u6578\u3002\u9019\u6a23\u7684\u660e\u78ba\u578b\u614b\u63d0\u793a\u4f7f\u5f97\u51fd\u5f0f\u7684\u4f7f\u7528\u66f4\u52a0\u6e05\u6670\u3002<\/p>\n

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

\u5728\u4f7f\u7528 Annotations \u6642\uff0c\u53ef\u80fd\u6703\u9047\u5230\u4ee5\u4e0b\u5e38\u898b\u932f\u8aa4\uff1a<\/p>\n

– **\u578b\u614b\u4e0d\u7b26**\uff1a\u5982\u679c\u50b3\u905e\u7684\u53c3\u6578\u578b\u614b\u8207\u8a3b\u89e3\u4e0d\u7b26\uff0c\u51fd\u5f0f\u4ecd\u7136\u53ef\u4ee5\u57f7\u884c\uff0c\u4f46\u53ef\u80fd\u6703\u5c0e\u81f4\u610f\u60f3\u4e0d\u5230\u7684\u7d50\u679c\u3002\u5efa\u8b70\u4f7f\u7528\u975c\u614b\u578b\u614b\u6aa2\u67e5\u5de5\u5177\u6aa2\u67e5\u578b\u614b\u3002<\/p>\n

– **\u8a3b\u89e3\u672a\u88ab\u8fa8\u8b58**\uff1a\u78ba\u4fdd\u4f60\u7684\u7de8\u8f2f\u5668\u6216 IDE \u652f\u63f4 Python Annotations\uff0c\u67d0\u4e9b\u820a\u7248\u7684\u7de8\u8f2f\u5668\u53ef\u80fd\u7121\u6cd5\u6b63\u78ba\u89e3\u6790\u9019\u4e9b\u8a3b\u89e3\u3002<\/p>\n

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

\u5728\u5be6\u969b\u958b\u767c\u4e2d\uff0cAnnotations \u53ef\u4ee5\u7d50\u5408\u5176\u4ed6\u9ad8\u7d1a\u7279\u6027\uff0c\u5982 decorators\u3001\u985e\u5225\u548c\u51fd\u5f0f\u91cd\u8f09\u7b49\uff0c\u4f86\u5be6\u73fe\u66f4\u8907\u96dc\u7684\u7a0b\u5f0f\u908f\u8f2f\u3002\u5efa\u8b70\u53c3\u8003 [\u9019\u7bc7\u6587\u7ae0](https:\/\/vocus.cc) \u4ee5\u4e86\u89e3\u66f4\u591a Python \u7684\u9032\u968e\u7528\u6cd5\u3002<\/p>\n

\u7e3d\u7d50<\/h2>\n

\u7e3d\u7684\u4f86\u8aaa\uff0cPython \u7684 Annotations \u529f\u80fd\u662f\u4e00\u500b\u5f37\u5927\u4e14\u5be6\u7528\u7684\u7279\u6027\uff0c\u80fd\u5920\u589e\u5f37\u7a0b\u5f0f\u78bc\u7684\u53ef\u8b80\u6027\u53ca\u53ef\u7dad\u8b77\u6027\u3002\u5118\u7ba1\u5b58\u5728\u4e00\u4e9b\u9650\u5236\uff0c\u4f46\u5728\u9069\u7576\u7684\u60c5\u6cc1\u4e0b\u4f7f\u7528 Annotations \u662f\u4e00\u500b\u503c\u5f97\u63a8\u85a6\u7684\u6700\u4f73\u5be6\u8e10\u3002<\/p>\n

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

**Q1: Python \u7684 Annotations \u662f\u5426\u6703\u5f71\u97ff\u7a0b\u5f0f\u6548\u80fd\uff1f**
\nA1: \u4e0d\u6703\uff0cAnnotations \u50c5\u4f5c\u70ba\u8a3b\u89e3\u5b58\u5728\uff0c\u4e0d\u6703\u5f71\u97ff\u57f7\u884c\u6548\u80fd\u3002<\/p>\n

**Q2: \u6211\u53ef\u4ee5\u5728\u985e\u5225\u4e2d\u4f7f\u7528 Annotations \u55ce\uff1f**
\nA2: \u662f\u7684\uff0cAnnotations \u540c\u6a23\u53ef\u4ee5\u61c9\u7528\u65bc\u985e\u5225\u65b9\u6cd5\u7684\u53c3\u6578\u8207\u56de\u50b3\u503c\u3002<\/p>\n

**Q3: \u5982\u4f55\u4f7f\u7528 Annotations \u9032\u884c\u578b\u614b\u6aa2\u67e5\uff1f**
\nA3: \u53ef\u4ee5\u4f7f\u7528\u975c\u614b\u578b\u614b\u6aa2\u67e5\u5de5\u5177\uff0c\u5982 Mypy\uff0c\u4f86\u6aa2\u67e5\u4f60\u7684 Annotations \u662f\u5426\u6b63\u78ba\u3002<\/p>\n

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

\u4e86\u89e3Python\u7684Annotations\u529f\u80fd\uff0c\u5b78\u7fd2\u5982\u4f55\u4f7f\u7528Python\u7684Annotations\u529f\u80fd\uff0c\u4ee5\u53ca\u5982\u4f55\u5c07\u5b83\u5011\u7528\u65bc\u66f4\u597d\u5730\u7ba1\u7406\u7a0b\u5e8f\u78bc\u3002\u9019\u7bc7\u6587\u7ae0\u5c07\u6df1\u5165\u63a2\u8a0ePython\u7684Annotations\u529f\u80fd\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u6280\u5de7\uff0c\u4ee5\u5e6b\u52a9\u60a8\u66f4\u597d\u5730\u7406\u89e3\u548c\u4f7f\u7528\u5b83\u5011\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-3114","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-Oe","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3114","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=3114"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3114\/revisions"}],"predecessor-version":[{"id":3115,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3114\/revisions\/3115"}],"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=3114"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3114"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3114"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}