{"id":3492,"date":"2025-05-28T15:27:26","date_gmt":"2025-06-04T07:33:26","guid":{"rendered":"https:\/\/badgameshow.com\/steven\/?p=3492"},"modified":"2025-06-04T15:27:26","modified_gmt":"2025-06-04T07:33:26","slug":"%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84methods%e5%87%bd%e6%95%b8%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/badgameshow.com\/steven\/python\/%e4%ba%86%e8%a7%a3python%e4%b8%ad%e7%9a%84methods%e5%87%bd%e6%95%b8%e5%8a%9f%e8%83%bd\/","title":{"rendered":"2025 \u6700\u65b0 Python \u6559\u5b78\uff1a\u6df1\u5165\u4e86\u89e3 objects \u7684 dir() \u65b9\u6cd5"},"content":{"rendered":"

<\/p>\n

2025 \u6700\u65b0 Python \u6559\u5b78\uff1a\u6df1\u5165\u4e86\u89e3 objects \u7684 dir() \u65b9\u6cd5<\/h1>\n

\u5728 Python \u4e2d\uff0c`dir()` \u51fd\u6578\u662f\u4e00\u500b\u975e\u5e38\u6709\u7528\u7684\u5de5\u5177\uff0c\u80fd\u5920\u5e6b\u52a9\u958b\u767c\u8005\u67e5\u770b\u7269\u4ef6\u7684\u6240\u6709\u65b9\u6cd5\u53ca\u5176\u5c6c\u6027\u3002\u9019\u5c0d\u65bc\u7406\u89e3\u7269\u4ef6\u7684\u529f\u80fd\u548c\u9032\u884c\u6709\u6548\u7684\u7de8\u78bc\u975e\u5e38\u91cd\u8981\u3002<\/p>\n

\u4f7f\u7528\u65b9\u6cd5<\/h2>\n

\u4f7f\u7528 `dir()` \u51fd\u6578\u975e\u5e38\u7c21\u55ae\uff0c\u53ea\u9700\u5c07\u7269\u4ef6\u540d\u7a31\u4f5c\u70ba\u53c3\u6578\u50b3\u5165\u3002\u4f8b\u5982\uff0c\u82e5\u6211\u5011\u60f3\u67e5\u770b\u5b57\u4e32\u7269\u4ef6\u7684\u65b9\u6cd5\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u7a0b\u5f0f\u78bc\uff1a<\/p>\n

“`python
\nstr_obj = “Hello World”
\nmethods = dir(str_obj)
\nprint(methods)
\n“`<\/p>\n

\u57f7\u884c\u4ee5\u4e0a\u7a0b\u5f0f\u78bc\u5f8c\uff0c\u5c07\u6703\u5f97\u5230\u4e00\u500b\u5217\u8868\uff0c\u5176\u4e2d\u5305\u542b\u4e86\u5b57\u4e32\u7269\u4ef6\u7684\u6240\u6709\u65b9\u6cd5\u53ca\u5176\u5c6c\u6027\uff1a<\/p>\n

“`python
\n[‘__add__’, ‘__class__’, ‘__contains__’, ‘__delattr__’, ‘__doc__’, ‘__eq__’, ‘__format__’, ‘__ge__’, ‘__getattribute__’, ‘__getitem__’, ‘__getstate__’, ‘__gt__’, ‘__hash__’, ‘__init__’, ‘__init_subclass__’, ‘__iter__’, ‘__le__’, ‘__len__’, ‘__lt__’, ‘__mod__’, ‘__mul__’, ‘__ne__’, ‘__new__’, ‘__reduce__’, ‘__reduce_ex__’, ‘__repr__’, ‘__rmod__’, ‘__rmul__’, ‘__setattr__’, ‘__setstate__’, ‘__sizeof__’, ‘__str__’, ‘__subclasshook__’, ‘capitalize’, ‘casefold’, ‘center’, ‘count’, ‘encode’, ‘endswith’, ‘expandtabs’, ‘find’, ‘format’, ‘format_map’, ‘index’, ‘isalnum’, ‘isalpha’, ‘isdecimal’, ‘isdigit’, ‘isidentifier’, ‘islower’, ‘isnumeric’, ‘isprintable’, ‘isspace’, ‘istitle’, ‘isupper’, ‘join’, ‘ljust’, ‘lower’, ‘lstrip’, ‘maketrans’, ‘partition’, ‘replace’, ‘rfind’, ‘rindex’, ‘rjust’, ‘rpartition’, ‘rsplit’, ‘rstrip’, ‘split’, ‘splitlines’, ‘startswith’, ‘strip’, ‘swapcase’, ‘title’, ‘translate’, ‘upper’, ‘zfill’]\n“`<\/p>\n

\u7bc4\u4f8b\u7a0b\u5f0f\u78bc<\/h2>\n

\u73fe\u5728\uff0c\u6211\u5011\u4f86\u770b\u4e00\u500b\u7c21\u55ae\u7684\u7bc4\u4f8b\uff0c\u4f7f\u7528 `dir()` \u51fd\u6578\u4f86\u67e5\u770b\u5b57\u4e32\u7269\u4ef6\u7684\u65b9\u6cd5\uff0c\u4e26\u4f7f\u7528\u5176\u4e2d\u4e00\u500b\u65b9\u6cd5\u4f86\u5c0d\u5b57\u4e32\u9032\u884c\u8655\u7406\uff1a<\/p>\n

“`python
\nstr_obj = “Hello World”
\nmethods = dir(str_obj)<\/p>\n

# \u4f7f\u7528 capitalize \u65b9\u6cd5\u5c0d\u5b57\u4e32\u9032\u884c\u8655\u7406
\nstr_obj = str_obj.capitalize()<\/p>\n

print(str_obj)
\n“`<\/p>\n

\u57f7\u884c\u4ee5\u4e0a\u7a0b\u5f0f\u78bc\u5f8c\uff0c\u5c07\u5f97\u5230\u4ee5\u4e0b\u7d50\u679c\uff1a<\/p>\n

“`python
\nHello world
\n“`<\/p>\n

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

\u5728\u4f7f\u7528 `dir()` \u51fd\u6578\u6642\uff0c\u5982\u679c\u4f60\u9047\u5230\u554f\u984c\uff0c\u8acb\u78ba\u8a8d\u4f60\u50b3\u5165\u7684\u7269\u4ef6\u662f\u6b63\u78ba\u7684\u985e\u578b\u3002\u4f8b\u5982\uff0c\u5c0d\u65bc\u4e0d\u652f\u63f4 `dir()` \u7684\u985e\u578b\uff0c\u6703\u8fd4\u56de\u7a7a\u5217\u8868\u3002<\/p>\n

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

`dir()` \u51fd\u6578\u4e0d\u50c5\u53ef\u4ee5\u7528\u65bc\u5b57\u4e32\uff0c\u9084\u53ef\u4ee5\u7528\u65bc\u4efb\u4f55 Python \u7269\u4ef6\uff0c\u4f8b\u5982\u5217\u8868\u3001\u5b57\u5178\u7b49\uff0c\u5e6b\u52a9\u958b\u767c\u8005\u5feb\u901f\u4e86\u89e3\u7269\u4ef6\u7684\u53ef\u7528\u65b9\u6cd5\u548c\u5c6c\u6027\u3002\u9019\u5c0d\u65bc\u8abf\u8a66\u548c\u512a\u5316\u7a0b\u5f0f\u78bc\u975e\u5e38\u6709\u5e6b\u52a9\u3002<\/p>\n

\u7d50\u8ad6<\/h2>\n

\u7e3d\u7684\u4f86\u8aaa\uff0cPython \u7684 `dir()` \u51fd\u6578\u662f\u4e00\u500b\u975e\u5e38\u5f37\u5927\u7684\u5de5\u5177\uff0c\u53ef\u7528\u65bc\u5feb\u901f\u67e5\u770b\u7269\u4ef6\u7684\u65b9\u6cd5\u53ca\u5c6c\u6027\u3002\u9019\u4f7f\u5f97\u958b\u767c\u8005\u80fd\u5920\u66f4\u6709\u6548\u5730\u5b78\u7fd2\u548c\u4f7f\u7528 Python\u3002<\/p>\n

\u5982\u9700\u9032\u4e00\u6b65\u4e86\u89e3 Python \u7684\u5404\u7a2e\u7279\u6027\u548c\u61c9\u7528\uff0c\u8acb\u53c3\u8003\u6211\u5011\u7684 [Python \u6559\u5b78\u8cc7\u6e90](https:\/\/vocus.cc)\uff01<\/p>\n

\u5e38\u898b\u554f\u984c\u89e3\u7b54 (Q&A)<\/h2>\n

**Q1: `dir()` \u548c `methods()` \u6709\u4ec0\u9ebc\u4e0d\u540c\uff1f**
\nA1: `dir()` \u662f Python \u7684\u5167\u5efa\u51fd\u6578\uff0c\u53ef\u4ee5\u5217\u51fa\u7269\u4ef6\u7684\u6240\u6709\u5c6c\u6027\u548c\u65b9\u6cd5\uff0c\u800c `methods()` \u4e26\u4e0d\u662f Python \u7684\u6a19\u6e96\u51fd\u6578\uff0c\u5be6\u969b\u4e0a\u61c9\u4f7f\u7528 `dir()` \u4f86\u9054\u5230\u76f8\u4f3c\u7684\u6548\u679c\u3002<\/p>\n

**Q2: \u5982\u4f55\u67e5\u770b\u6307\u5b9a\u65b9\u6cd5\u7684\u8a73\u7d30\u8aaa\u660e\uff1f**
\nA2: \u53ef\u4ee5\u4f7f\u7528 `help()` \u51fd\u6578\u4f86\u7372\u53d6\u65b9\u6cd5\u7684\u8a73\u7d30\u8aaa\u660e\uff0c\u4f8b\u5982 `help(str_obj.capitalize)`\u3002<\/p>\n

**Q3: \u70ba\u4ec0\u9ebc\u6211\u5728\u67d0\u4e9b\u7269\u4ef6\u4e0a\u4f7f\u7528 `dir()` \u6703\u8fd4\u56de\u7a7a\u5217\u8868\uff1f**
\nA3: \u9019\u53ef\u80fd\u662f\u56e0\u70ba\u8a72\u7269\u4ef6\u4e0d\u652f\u63f4 `dir()`\uff0c\u6216\u662f\u8a72\u7269\u4ef6\u7684\u985e\u578b\u4e0d\u6b63\u78ba\u3002\u78ba\u8a8d\u7269\u4ef6\u985e\u578b\u4e26\u6aa2\u67e5\u5176\u5c6c\u6027\u3002
\n—<\/p>\n","protected":false},"excerpt":{"rendered":"

methods()\u51fd\u6578\u662fPython\u4e2d\u7684\u4e00\u500b\u91cd\u8981\u51fd\u6578\uff0c\u5b83\u53ef\u4ee5\u7528\u4f86\u67e5\u770b\u7269\u4ef6\u7684\u65b9\u6cd5\uff0c\u4e26\u63d0\u4f9b\u5c0d\u7269\u4ef6\u7684\u64cd\u4f5c\u65b9\u6cd5\uff0c\u53ef\u4ee5\u5e6b\u52a9\u958b\u767c\u8005\u66f4\u5feb\u901f\u5730\u5b8c\u6210\u7a0b\u5f0f\u958b\u767c\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-3492","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-Uk","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3492","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=3492"}],"version-history":[{"count":1,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3492\/revisions"}],"predecessor-version":[{"id":3493,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/posts\/3492\/revisions\/3493"}],"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=3492"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/categories?post=3492"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/badgameshow.com\/steven\/wp-json\/wp\/v2\/tags?post=3492"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}